US20130045921A1 - Therapeutic agent for rhinitis - Google Patents
Therapeutic agent for rhinitis Download PDFInfo
- Publication number
- US20130045921A1 US20130045921A1 US13/392,657 US201013392657A US2013045921A1 US 20130045921 A1 US20130045921 A1 US 20130045921A1 US 201013392657 A US201013392657 A US 201013392657A US 2013045921 A1 US2013045921 A1 US 2013045921A1
- Authority
- US
- United States
- Prior art keywords
- rhinitis
- nasal
- preparation
- bnp
- cnp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- A61K38/22—Hormones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- A61K38/22—Hormones
- A61K38/2242—Atrial natriuretic factor complex: Atriopeptins, atrial natriuretic protein [ANP]; Cardionatrin, Cardiodilatin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0043—Nose
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P11/00—Drugs for disorders of the respiratory system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P11/00—Drugs for disorders of the respiratory system
- A61P11/02—Nasal agents, e.g. decongestants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P37/00—Drugs for immunological or allergic disorders
- A61P37/08—Antiallergic agents
Definitions
- the present invention relates to a therapeutic preparation for rhinitis comprising C-type natriuretic peptide (CNP) or B-type natriuretic peptide (BNP) as the active ingredient.
- CNP C-type natriuretic peptide
- BNP B-type natriuretic peptide
- Rhinitis refers to what is known as an inflammation of the so-called nasal mucous membrane, and histopathologically it is an exudative inflammation, often exhibited as pyogenic inflammation and allergic inflammation. In any cases, it is characterized by exudation of fluid components from the blood vessels, edema, cellular exudates and supersecretion.
- Rhinitis includes various types such as acute rhinitis (so-called cold in the nose), chronic rhinitis, and allergic rhinitis depending on the cause and symptoms; usually, it is classified into four types depending on their causes and symptoms, namely infectious rhinitis, hypersensitive non-infectious rhinitis, irritant rhinitis, and others, as shown below.
- Irritant (a) Physical irritant-induced rhinitis (b) Chemical irritant-induced rhinitis (c) Radiation-induced rhinitis 4. Others (a) Atrophic rhinitis (b) Specific granulomatous rhinitis
- Infectious rhinitis is classified into acute rhinitis (the so-called cold in the nose) which progresses within a short period, and chronic rhinitis which persists for a long period.
- Infective chronic paranasal sinusitis in which nasal cavities mainly around the ethmoid sinus and middle nasal meatus are affected, is also included in the infectious rhinitis.
- Symptoms of acute viral rhinitis are characterized by runny nose, stuffy nose, and postnasal rhinorrhea in which nasal drip flows into the throat, coughing, slight fever and others.
- vasoconstrictive agents such as spray-type nasal drop preparations of phenylephrine and oral medicines of pseudoephedrin are used.
- spray preparations must be limited to 3 to 4 days.
- antihistamine drugs have an effect to suppress runny nose, they also have side effects such as drowsiness.
- rhinitis contribute factors of acute simple rhinitis include sinusitis, tonsillitis, and inflammation of adjacent organs such as the adenoids, as well as dust, soot, tobacco, air pollution, extreme temperature change, excessive dryness and moistness.
- Symptoms initiate with sneezing, and include excess rhinorrhea (nasal drip), nasal occlusion (stuffy nose), and impairment of the sense of smell; they resemble the symptoms of a cold of the nose, but do not include systemic symptoms such as fever.
- the nasal mucous membrane congests and swells. Disease is usually cured within 10 days, but occasionally bacterial infection occurs, worsening the symptoms and causing a fever.
- a prolonged course of the disease results in sinusitis or chronic rhinitis.
- patients are rested and kept warm, and supportive measures are also taken, such as the use of antifebriles, analgesics, antitussive agents, and anti-inflammatory agents; when a bacterial infection occurs, antibiotics are used.
- Chronic rhinitis is a long-term infectious rhinitis; when contributing factors of acute rhinitis are not improved, acute rhinitis turns into chronic rhinitis. Chronic rhinitis is often associated with chronic sinusitis. Chronic rhinitis has three pathological conditions, each referred to as chronic simple rhinitis, chronic hypertrophic rhinitis, and atrophic rhinitis.
- Chronic simple rhinitis is a pathological condition in which the mucous membrane of the nasal cavities swells chronically due to repeated acute rhinitis. Symptoms of chronic simple rhinitis are mostly identical to those of hypertrophic rhinitis, and include nasal occlusion, excess rhinorrhea, impairment of the sense of smell and headache. However, it differs from chronic hypertrophic rhinitis in that swelling of the nasal mucous membrane is improved by vasoconstrictive agents. For treatment, removal of contributing factors is most important; conservative management such as the application of drugs and use of anti-inflammatory agents is also carried out.
- Chronic hypertrophic rhinitis is caused by severe long-lasting inflammation. Chronichypertrophicrhinitis is the most prevalent pathological condition among the chronic rhinitides, and exhibits severe swelling and thickening of the nasal mucous membrane.
- Chronic atrophic rhinitis refers to a pathological condition wherein the mucous membrane of the nasal cavities and the bone tissues of the nose become atrophied, resulting in widened nasal cavities. Stuffy nose occurs on both sides and purulent nose drips are discharged. Discharges inside the nose attach to the wall of the nasal cavity in a crust like manner, releasing a bad odor.
- Hypersensitive non-infectious rhinitis is a rhinitis wherein inflammation is caused by the mucous membrane of the nasal cavities that have become hypersensitive due to diathesis and some other reasons, so that it occurs by stimulations other than viruses and bacterial infection.
- hypersensitive non-infectious rhinitis can be classified into combined-type rhinitis (hypersensitive nose), rhinorrhea-type rhinitis, congestive-type rhinitis, and dry-type rhinitis.
- combined-type rhinitis hypersensitive nose
- allergic rhinitis can be classified into, from their favored onset timing, perennial allergic rhinitis and seasonal allergic rhinitis, and non-allergic rhinitis can be classified into vasomotor rhinitis (idiopathic rhinitis) and non-allergic rhinitis with eosinophilia syndrome.
- rhinorrhea-type rhinitis can be classified into gustatory rhinitis, cold air inhalation-induced rhinitis, and senile rhinitis; and congestive-type rhinitis can be classified into drug-induced rhinitis, psychogenic rhinitis, pregnancy rhinitis, and cold-induced rhinitis.
- Combined-type rhinitis usually accompanies some of the symptoms including sneezing, watery rhinorrhea, and nasal occlusion (stuffy nose); for example, sneezing with watery rhinorrhea, sneezing with watery rhinorrhea and nasal occlusion.
- allergic rhinitis is induced by the immune response of the body against causative substances in the external environment.
- allergic rhinitis generally include house dust, house dust mites, fungi, pollens, grasses, trees, and animals. More specifically, allergic rhinitis is a type-I allergic disease of the nasal mucous membrane, and is characterized by, in principle, paroxysmal repetitive sneezing, watery rhinorrhea, and nasal occlusion. Since allergic rhinitis is a type-I allergic disease, patients often have an allergic disposition (past history, complication, and family history of allergy), and are characterized by an increased serum level of specific IgE antibodies, increases in the local mast cells as well as local and blood eosinophils, and enhancement of non-specific sensitivity of the mucous membrane.
- perennial allergic rhinitis is mostly caused by house dust and house dust mites
- seasonal allergic rhinitis is mostly caused by pollen.
- vasomotor rhinitis is a kind of chronic rhinitis with some symptoms similar to those of general allergic rhinitis, i.e., nasal occlusion (stuffy nose), sneezing, and watery rhinorrhea (runny nose), but showing no apparent antigens.
- Symptoms include, in addition to stuffy nose, swelling of the mucous membrane with various colors from red to violet. Sometimes mild inflammation is observed in the paranasal sinuses.
- anti-histamine drugs and anti-allergy agents are used.
- non-allergic rhinitis with eosinophilia syndrome refers to a disease wherein an allergy test result is negative, but the amount of eosinophils in the nasal drip alone increases to some extent.
- the rhinorrhea-type hypersensitive non-infectious rhinitis is characterized by rhinorrhea, and there are three types: gustatory rhinitis, cold air inhalation-induced rhinitis, and senile rhinitis. Gustatory rhinitis often occurs during eating highly-irritating foods or very hot foods. Cold air inhalation-induced rhinitis is a rhinorrhea induced by inhalation of cold air, which is famous as the skier's nose. Senile rhinitis is also characterized by watery rhinorrhea, but its cause is unknown.
- congestive rhinitis is characterized by nasal occlusion as a predominant symptom, and is further classified into drug-induced rhinitis, psychogenic rhinitis, pregnancy rhinitis, endocrine rhinitis, and cold-induced rhinitis. Any of these types of rhinitis is characterized by congestion of the mucous membrane, and a stuffy nose is often observed.
- drug-induced rhinitis is characterized by stuffy nose as a predominant symptom, which is reportedly possibly induced as a side effect of long-term continuous administration of drugs such as sympatholytic antihypertensive drugs, vasodilatory antihypertensive drugs, -stimulation antihypertensive drugs, bronchodilators, anti-depressants, and contraceptive pills.
- drugs such as sympatholytic antihypertensive drugs, vasodilatory antihypertensive drugs, -stimulation antihypertensive drugs, bronchodilators, anti-depressants, and contraceptive pills.
- the most frequently observed cause is the abuse of a vasoconstrictor nasal drop preparation against nasal occlusion.
- Psychogenic rhinitis is observed with chronic stress, depression, and neurosis, and is characterized by nasal occlusion.
- Pregnancy rhinitis occurs in the second trimester or later of pregnancy, and its onset is considered to be particularly associated with actions of female hormone, especially estrogen, on the blood vessels of nasal mucous membranes and on autonomic receptors.
- Endocrine rhinitis is known with emphasis on a decrease in thyroid activity. But the number of the case is small.
- Cold-induced rhinitis is considered to be induced by reflex vasodilation in nasal mucosa, via cold stimulation of the body, in particular the hands and feet.
- dry-type rhinitis dry nose
- moisture when the humidity in a room becomes 20% or lower due to dry air and heating in winter, symptoms such as dry mucous membrane, crusting, and nasal bleeding occur, and hypersensitivity to irritation increases due to drying of the mucous layer, leading to nasal dryness and nasal occlusion sensations.
- Irritant rhinitis is often caused by the working environment of an occupation, and is classified into physical irritant-induced rhinitis, chemical irritant-induced rhinitis and radiation-induced rhinitis based on the cause.
- physical irritant-induced rhinitis and chemical irritant-induced rhinitis develop by physical or chemical, acute or chronic irritation of mucous membranes.
- Inflammation is sometimes caused by radiation of nasal mucous membranes, which is called radiation-induced rhinitis.
- rhinitis Other types include atrophic rhinitis and specific granulomatous rhinitis. As symptoms of atrophic rhinitis (ozena), the nasal mucous membrane becomes thin and hard, and the nasal cavities extend to induce dryness; however, this type of rhinitis is currently rare in Japan. Specific granulomatous rhinitis is a rhinitis associated with granuloma, and includes specific rhinitis (tuberculosis, syphilis, etc.), sarcoidosis, and Wegener granulomatosis; however, the number of cases is extremely small.
- rhinitis is a state of the nasal mucous membrane that is swelling by inflammation, characterized by symptoms such as runny nose and stuffy nose, which disturbs the daily lives of patients who experience difficulty in breathing; thus, rhinitis is a troublesome disease.
- rhinitis in particular allergic rhinitis
- methods are generally selected based on the combination of severity level and disease type. The selection is not standardized, but according to “Guidelines for medical care of nasal allergies, 2009 edition” (edited by the committee for creation of guidelines for medical care of nasal allergies) treatment methods are as follows.
- the first choice should be second-generation antihistamine drugs or chemical mediator releasing suppressants.
- first-generation antihistamine drugs having a fast-acting property may be administered.
- (2) second-generation antihistamine drugs, (2) chemical mediator releasing suppressants, or (3) steroid nasal sprays is selected, and if necessary, either (1) or (2) is combined with (3).
- nasal-occlusion type or mixed type with particularly severe nasal-occlusion cases one of the following:
- anti-leukotriene drugs (2) anti-prostaglandin D2/thromboxane A2 drugs, or (3) steroid nasal sprays, is selected, and if necessary, either (1) or (2) is combined with (3).
- a second-generation antihistamine drug is combined with a steroid nasal spray.
- an anti-leukotriene drug or anti-prostaglandin D2/thromboxane A2 drug is combined with a steroid nasal spray.
- drugs used in the drug therapy can be classified into the following drug groups based on their action mechanism: steroids, histamine receptor antagonists, chemical mediator releasing suppressants, thromboxane A2 receptor antagonists, thromboxane A2 synthesis inhibitors, leukotriene antagonists, and Th2 cytokine inhibitors.
- examples of steroids include beclomethasone (brand name: Beconase, Aldecin, Rhinocort, Salcoat), fluticasone (brand name: Flixonase), etc.
- histamine receptor antagonists include ketotifen (brand name: Zaditen), mequitazine (brand name: Zesulan), fexofenadine (brand name: Allegra), ebastine (brand name: Ebastel), bepotastine (brand name: Talion), olopatadine (brand name: Allelock), loratadine (brand name: Claritin), etc.
- Examples of chemical mediator releasing suppressants include cromolyn (brand name: Intal) and tranilast (brand name: Rizaben), etc.
- Examples of thromboxane A2 receptor antagonists include seratrodast (brand name: Bronica) and ramatroban (band name: Bynas), etc.
- Examples of thromboxane A2 synthesis inhibitors include ozagrel (brand name: Domenan or brand name: Vega), etc.
- Examples of leukotriene antagonists include montelukast (brand name: Singulair, Kipres) and pranlukast (brand name: Onon), etc.
- Examples of Th2 cytokine inhibitors include suplatast (brand name: IPD), etc.
- steroids or histamine receptor antagonists are frequently used for moderate cases, and a combination of steroids and histamine receptor antagonists is used for severe cases.
- steroid nasal sprays elicit some local side effects such as nasal irritation, dryness, burning sensation of the nose, and nasal bleeding.
- caution should be taken to avoid steroid withdrawal difficulty, and complications of infection should be a concern.
- steroid nasal sprays do not have a long duration of effectiveness, and in the case of adult patients, application of about 4 times a day is necessary. Accordingly, many patients hesitate to use steroid nasal sprays, and there is a report stating that more than half of the patients did not take drugs in accordance with their prescription.
- antihistamine drugs suppress allergic reactions and their symptoms, they have disadvantages that they cause dryness in the nasal mucous membrane and drowsiness.
- injection of allergens leads to a long-term immunological tolerance against a specific causative substance, it takes from several months to several years for the manifestation of sufficient effects.
- NPs natriuretic peptides
- ANP atrial natriuretic peptide
- BNP B-type natriuretic peptide
- CNP C-type natriuretic peptide
- ANP and BNP are synthesized mainly by the atria and the ventricles, respectively, and released from the heart into the whole body. It is thought that nearly 100% of the circulating ANP and BNP in the blood originate from the heart. These ANP and BNP are reported to be deeply involved in a numerous diseases, including hypertension, cardiomegaly, cardiac failure, myocardial infarction, valvular heart disease, cardiac dysrhythmia, and pulmonary hypertension.
- Human ANP is a peptide produced and released by atrial cardiocytes, and is composed of 28 amino acids, of which the 7 th cysteine and the 23 rd cysteine are bonded by a disulfide bond to form a ring structure. ANP has been shown to have diuretic effects in the kidneys and relaxes/dilates vascular smooth muscle cells in the blood vessels.
- human BNP is a peptide produced and released by ventricular cells, and is composed of 32 amino acids, of which the 10 th cysteine and the 26 th cysteine are bonded by a disulfide bond to form a ring structure. BNP also possesses both diuretic and vasodilating effects. BNP was originally isolated and identified in the porcine brain in Japan in 1988, and is also called brain natriuretic peptide.
- Both ANP and BNP bind to the receptor NPR-A (also called GC-A) having a guanylate cyclase domain, and exert their effects as stated above by stimulating the production of cGMP.
- NPR-A also called GC-A
- secretion of ANP is stimulated in response to an increase in the atrial pressure by its distension in congestive heart failure, etc., and through its action as stated above, ANP relieves the symptoms of congestive heart failure, etc.
- BNP's release is stimulated during certain conditions including myocardial infarction, and BNP, through its action as described above, relieves the symptoms associated with myocardial infarction, etc. (Refer to non-patent literature 1).
- ANP hANP
- BNP is clinically used in the United States.
- CNP which was once thought to function only as a brain peptide because it was first found in the brain, has now been clarified to exist in the periphery as well.
- CNP specific receptors were found to be abundant in the smooth muscle cells, and CNP to be produced by the cells of the monocyte/macrophage linage and the endothelial cells.
- CNP is speculated to function in the vascular walls as a local mediator involved in inhibition of growth of vascular smooth muscle cells. Its clinical application is currently being investigated for possible prevention of restenosis by CNP administration, which occurs with a certain frequency after percutaneous transluminal coronary angioplasty (PTCA) performed on patients with ischemic heart failure.
- PTCA percutaneous transluminal coronary angioplasty
- CNP cardiac neurotrophic factor
- Natriuretic peptide receptors are classified into three subtypes; NPR-A receptor (also called GC-A) and NPR-B receptor (also called GC-B) both of which contain a guanylate cyclase domain, and NPR-C receptor which lacks a guanylate cyclase domain. It is known that ANP can bind to NPR-A and NPR-C receptors, BNP can bind to NPR-A and NPR-C receptors, and CNP can bind to NPR-B and NPR-C receptors.
- NPR-A receptors The activation of NPR-A receptors is suggested to induce vasodilation, a diuretic effect, and inhibition of cell growth, while NPR-B receptors are abundant in vascular smooth muscle cells and thought to be involved in the growth inhibition of vascular smooth muscle cells.
- natriuretic peptides were first discovered as a peptide released from the atria, later named ANP, and its vasodilating and diuretic actions gathered attention. BNP and CNP were then discovered as peptides similar to ANP. This historical background offers an explanation as to why any attention to the relationship between natriuretic peptides and the immune system have been focused on those related to the cardiovascular system. CNP knock-out mice demonstrated impaired growth of cartilage resulting in a dwarfism-like phenotype (refer to Non-patent literature 2), which directed some interest to the relationship between arthritis and natriuretic peptides.
- ANP is implicated in playing a role in arthritis and sepsis as it inhibits the release of inflammatory cytokines including tumor necrosis factor (TNF- ⁇ ) and interleukin 1 ⁇ (IL-1 ⁇ ) by macrophages (refer to Non-patent literature 3).
- TNF- ⁇ tumor necrosis factor
- IL-1 ⁇ interleukin 1 ⁇
- Non-patent literature 4 the blood concentration of BNP has been reported to increase with the rejection response following heart transplant, and therefore it is suggested that it is associated with immune regulation in the cardiovascular system.
- this literature does not describe any connection between BNP and rhinitis.
- Non-patent literature 7 CNP is reported to be released by macrophages (refer to Non-patent literature 7), and while investigating the roles of CNP in cardiac ischemia and myocardial damage after reperfusion, Scotland et al. report that CNP suppresses platelet aggregation and lymphocyte migration (refer to Non-patent literature 8).
- Toshiko Koide and her colleagues have proposed a preparation for repair/regeneration of tissues and organs, comprising a composition that comprises any of ANP, BNP, CNP, urodilatin (P-Uro), precursors thereof, derivatives thereof, or combinations thereof as an active ingredient, and that may comprise pharmaceutically commonly-used diluents, excipients, fillers, and auxiliary agents (refer to Patent Literature 1).
- Katsuhiko Nakada and his colleagues proposed an eye drop for promoting lacrimal secretion or for treating keratoconjunctival disorder, containing as its active ingredient a natriuretic peptide, and they listed ANP, BNP and CNP as examples of usable natriuretic peptides (refer to Patent Literature 3).
- ANP and BNP are thought to act as a hormone secreted by the heart into the blood, as well as a neurotransmitter, and to play an important role in maintaining the amount of body fluid and homeostasis of blood pressure.
- CNP has a primary amino acid sequence similar to that of ANP and BNP and shows a natriuretic action and a hypotensive action upon in vitro administration, CNP was relegated to the natriuretic peptide family.
- CNP has held a unique position in the natriuretic peptide family, and has been presumed to be playing a role different from the maintenance of amounts of body fluid and homeostasis of blood pressure . . . Comparing the structure of CNP with that of ANP/BNP, CNP differs from ANP or BNP in the following points . . .
- the primary amino acid sequence of CNP completely differs from that of ANP or BNP at the exocyclic N-terminal domain; of the 17 amino acid residues in the endocyclic domain, 5 residues and 4 residues in CNP differ from those in ANP and BNP, respectively.
- the structure of the exocyclic C-terminal domain of CNP largely differs from that of ANP or BNP, and CNP does not have a tail structure existing in ANP or BNP (in the case of ANP and BNP, 5 amino acid residues and 6 amino acid resides, respectively, are attached to the C-terminal of the cyclic structure in ANP and BNP; this structure is called a tail structure for descriptive purposes).
- Rhinitis in particular allergic rhinitis, is a recurrent disease therefore its treatment requires continuous use of drugs.
- a steroid nasal spray has strong local effects even in small amounts, occasionally it also induces local side effects such as nasal irritation, dryness, nose burning sensation, and nasal bleeding, and it inevitably involves complications of infection and others due to long-term use.
- Antihistamine drugs suppress allergic reactions and their symptoms, but they have disadvantages such as drying of the nasal mucous membrane and inducing drowsiness.
- the object of the present invention is to provide a novel therapeutic preparation for rhinitis that is not only efficacious and safe for patients with rhinitis, in particular patients with allergic rhinitis, but also has no side effects such as nasal irritation, dryness, nose burning sensation, nasal bleeding, and drowsiness, etc.
- CNP C-type natriuretic peptide
- BNP B-type natriuretic peptide
- the present invention specifically includes the following.
- a therapeutic preparation for rhinitis comprising C-type natriuretic peptide (CNP) or B-type natriuretic peptide (BNP) as the active ingredient.
- CNP C-type natriuretic peptide
- BNP B-type natriuretic peptide
- CNP C-type natriuretic peptide
- BNP B-type natriuretic peptide
- the CNP is a peptide selected from the group consisting of CNP-22, CNP-53, a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of CNP-22 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s), or a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of CNP-53 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s), and in which the BNP is a peptide selected from the group consisting of BNP-26, BNP-32, BNP-45, a peptide
- CNP C-type natriuretic peptide
- BNP B-type natriuretic peptide
- the dosage form is a nasal drop preparation selected from a gel preparation, a liquid preparation or a spray preparation.
- the therapeutic preparation for rhinitis of the present invention has, as is clear from the case studies mentioned below, not only excellent actions to improve rhinorrhea and nasal occlusion and to eliminate sneezing and nasal itching, but also superior permeability (absorbability) to the nasal mucous membrane and persistence. It is fast-acting and causes no irritation to patients with sensitive nasal mucous membranes, no local side effects as well as no systemic side effects such as induction of drowsiness.
- the therapeutic preparation for rhinitis of the present invention has CNP or BNP as the active ingredient, and its effects are more remarkable compared to conventional steroids and antihistamine drugs. In terms of persistence of the effects, it is a revolutionary preparation that can relieve symptoms by once-a-day administration.
- the therapeutic preparation for rhinitis of the present invention has long-lasting drug efficacy, while at first, use twice a day in the morning and before bedtime is recommended, in many cases application once a day from day 2 and thereafter can significantly improve symptoms such as sneezing, rhinorrhea, and nasal occlusion.
- the effects are manifested 10 to 20 min after the inhalation, and the preparation of the present invention is effective for any of mixed-type rhinitis, nasal-occlusion-type rhinitis, and sneezing/rhinorrhea-type rhinitis.
- Therapeutic effects in actual case studies (16 cases) showed that the preparation of the present invention was effective in 100% of the cases.
- BNP and ANP belong to the same family and share the common receptors.
- BNP preparations were revealed to have much greater pharmacological effects than ANP preparations. That is to say that BNP preparations are faster-acting than ANP preparations, and lead to better improvements of the clinical symptoms and the effects lasted longer.
- ANP preparations unexpectedly resulted in much poorer improvements in the rhinitis symptoms including runny nose, rhinorrhea and nasal occlusion, and in many cases, the symptoms showed no improvements or worsening.
- CNP and BNP are hormones which naturally occur in the body.
- side effects are less expected and with adequate dosage, it is thought to have only a minor effect on the hemodynamic status and hence it is safe to apply to patients with low or unstable blood pressure, allowing long-term administration to chronic rhinitis patients.
- It shows a potency to rhinitis greater than that of conventional steroids and antihistamine drugs and it is also more rapid-acting, with an enhanced efficacy and leads to longer-lasting effects; in many cases, application of once a day from day 2 and thereafter can significantly improve symptoms such as sneezing, rhinorrhea, and nasal occlusion.
- CNP preparations or BNP preparations in most cases, a mild to below mild and stable condition can be maintained without combined internal use of antihistamine agents, and it is also advantageous that there are no local irritation symptoms that are observed with steroid sprays.
- the therapeutic preparation for rhinitis of the present invention has a merit of being efficacious to patients who are resistant to steroid therapy or patients of severe cases, which makes the present invention an unprecedented, important therapeutic preparation.
- the therapeutic preparation for rhinitis of the present invention is extremely effective in the treatment of various types of rhinitis, in particular allergic rhinitis, and side effects need not be a concern; the present preparation can be applied to patients in whom conventional steroid nasal sprays and antihistamine drugs are not effective, or patients in whom these drugs cannot be applied due to the possibility of side effects, as well as young patients.
- FIG. 1 is a diagram showing a comparison of the amino acid sequences of human CNP peptide, human BNP peptide, and human ANP peptide.
- Each letter of the alphabet represents a type of amino acid expressed by one letter.
- There are three common regions in the amino acid sequence among the human CNP peptide, human BNP peptide and human ANP peptide i.e., amino acid sequences represented by “CFG”, “DRI” and “SGLGC”; each peptide has four mutually different sequences divided by these three common sequences.
- FIG. 2 is a graph showing the therapeutic effects on rhinitis before and after spraying CNP nasal drop preparations. Each point represents each case. In all of nine (9) severe cases and one (1) moderate case, symptoms were improved to a mild degree by the 100 ⁇ g/ml CNP nasal drop preparation.
- FIG. 3 is a graph showing the therapeutic effects on rhinitis before and after spraying BNP nasal drop preparations. Each point represents each case.
- two (2) most severe cases and one (1) moderate case symptoms were improved to a mild degree by spraying the 50 ⁇ g/ml BNP nasal drop preparation.
- symptoms were improved to a moderate degree by spraying the 50 ⁇ g/ml BNP nasal drop preparation.
- symptoms were improved to a mild degree by spraying the 100 ⁇ g/ml BNP nasal drop preparation.
- symptoms were improved to a mild degree by spraying the 200 ⁇ g/ml BNP nasal drop preparation.
- the present invention relates to a therapeutic preparation for rhinitis comprising C-type natriuretic peptide (CNP) or B-type natriuretic peptide (BNP) as the active ingredient.
- CNP C-type natriuretic peptide
- BNP B-type natriuretic peptide
- the CNP referred to herein means: CNP-22 composed of 22 amino acids, and CNP-53 in which 31 amino acid residues are attached to the N-terminal of the CNP-22, or derivatives thereof, without any particular limitations provided that they possess CNP activity.
- CNP-22, CNP-53, and their derivatives are all heretofore known, and can be made by chemical synthesis or genetic manipulations.
- CNP-22 and CNP-53 there are no particular limitations to the origin of CNP-22 and CNP-53, on the condition that they possess CNP activity, but the CNP derived from mammals including human or birds are preferred, and more preferably, the CNP derived from humans, monkeys, mice, rats or pigs, and particularly preferably, the CNP derived from humans.
- the CNP derivatives means those having, in the amino acid sequences of the CNP-22 or CNP-53, a deletion(s), substitution(s) or addition(s) of 1-5 amino acid(s), more preferably 1-3 amino acid(s), and furthermore preferably 1 or 2 amino acid(s), while possessing CNP activity, or alternatively, those having a sequence with a homology of 85% or more, preferably 90% or more, and more preferably 95% or more with the amino acid sequence of the CNP-22 or CNP-53, while possessing CNP activity.
- Replaceable amino acids are substituted ideally by conservative amino acid substitution.
- Conservative amino acids are classified by polarities and charge types. For example, nonpolar uncharged amino acids include glycine, alanine, valine, leucine, isoleucine, proline, etc.; aromatic amino acids include phenylalanine, tyrosine, tryptophan; polar uncharged amino acids include serine, threonine, cysteine, methionine, asparagine, glutamine, etc.; negatively-charged amino acids include asparaginic acid, glutamic acid; positively-charged amino acids include lysine, arginine, histidine. Thus, preferably amino-acid substitution is carried out between conservative amino acids belonging to the same group.
- proline when proline is to be replaced by another nonpolar uncharged amino acid, or when proline is to replace other nonpolar uncharged amino acids, it should be noted that proline is not flexible in its spatial orientation.
- cysteine when cysteine is to be replaced by another polar uncharged amino acid, or when cysteine is to replace other polar uncharged amino acids, it should be noted that cysteine may form a disulfide bond with another cysteine.
- CNP derivatives may include those amidated or methoxylated at the C terminal, CNP modified with addition of polyethylene glycol or fatty acids, and, glycosylated or alkylated CNP, provided they have CNP activity.
- any heretofore known CNPs with CNP activity can be used in the present invention.
- Examples may include CNP derivatives disclosed in JP A 6-9688, CNP derivatives disclosed in U.S. Pat. No. 5,583,108, and CD-NP disclosed in U.S. Pat. No. 6,818,619. It is possible to test the presence/absence of CNP activity easily using heretofore known procedures, such as by testing a growth inhibitory action on the vascular smooth muscle cells, or by examining the activity of cGMP production in the cells expressing NPR-B receptors.
- CNP-22 While any of CNP-22, CNP-53 and their derivatives can be used as the active ingredient of the present invention, CNP-22 with a lower molecular weight is more preferable in terms of absorbability.
- CNP-22 can be manufactured by chemical synthesis or genetic manipulation using human CNP genes, and is also available at, for example, Peptide Institute Inc. as CNP-22 (human).
- CNP that can be used in the present invention includes: purified naturally occurring CNP, genetically engineered CNP made using known genetic engineering procedures, CNP made using known chemical synthetic procedures (such as solid-phase peptide synthesis by peptide synthetic machinery).
- Basic methods including genetic engineering techniques, site-specific mutagenesis, and PCR, are commonly known or heretofore known, and are described in, for example, Current Protocols In Molecular Biology; John Wiley & Sons (1998), and JP A 5-207891.
- the BNP of the present invention refers to: BNP-26 containing 26 amino acids, BNP-32 containing 32 amino acids, BNP-45 containing 45 amino acids, or their derivatives without any particular limitations provided they possess BNP activity.
- BNP can also be high molecular weight ⁇ -BNP (molecular weight of approximately 13000) which is formed by the removal of the signal peptide from a BNP precursor.
- BNP-32 and their derivatives are preferred.
- BNP-26, BNP-32, BNP-45, and their derivatives are heretofore known, and can be manufactured by chemical synthesis or genetic manipulation.
- BNP-26, BNP-32 and BNP-45 possess BNP activity, but the CNP derived from mammals including humans or birds is preferred, and the CNP derived from humans, monkeys, mice, rats or pigs is more preferred, and the CNP derived from humans is particularly preferred.
- the BNP derivatives means, those having, in the amino acid sequences of BNP-26, BNP-32 or BNP-45, a deletion(s), addition(s) or substitution(s) of 1-5 amino acid(s), more preferably 1-3 amino acid(s), and furthermore preferably 1 or 2 amino acid(s), while possessing BNP activity, or alternatively, those having a sequence with a homology of 85% or more, preferably 90% or more, and more preferably 95% or more with the amino acid sequence of BNP-26, BNP-32 or BNP-45, while possessing BNP activity.
- Replaceable amino acids in the BNP derivatives are similar to the replaceable amino acids in the CNP derivatives.
- BNP derivatives may include those amidated or methoxylated at the C terminal of BNP, BNP modified with addition of polyethylene glycol or fatty acids, and, glycosylated or alkylated BNP, provided they have BNP activity.
- any heretofore known BNP with BNP activity can be used in the present invention.
- Examples may include BNP derivatives disclosed in JP A 2007-525213, BNP derivatives disclosed in U.S. Pat. No. 6,028,055, BNP derivatives disclosed in U.S. Pat. No. 5,114,923, and BD-NP disclosed in U.S. Pat. No. 6,818,619, or diuretic polypeptide or natriuretic polypeptide disclosed in JP A 2010-500032.
- BNP-32 While any of BNP-26, BNP-32, BNP-45 and their derivatives can be used as the active ingredient of the present invention, BNP-32 is preferable in terms of drug efficacy and availability.
- BNP of the present invention can be manufactured by chemical synthesis or genetic manipulation using human BNP genes (for example, refer to JP A5-207891, JP A2007-525957, JP A2007-525213), and BNP is also commercially available since it has already been launched. Alternatively, it is available from, for example, Peptide Institute Inc. as BNP-32 (human).
- BNP that can be used in the present invention includes: purified naturally occurring BNP, genetically engineered BNP made using known genetic engineering procedures, BNP made using known chemical synthetic procedures (such as solid-phase peptide synthesis by a peptide synthesizer).
- Basic methods including genetic engineering techniques, site-specific mutagenesis, and PCR, are commonly known or heretofore known, and are described in, for example, Current Protocols in Molecular Biology; John Wiley & Sons (1998), and JP A 5-207891.
- CNP or BNP refers to either CNP or BNP, as well as the chimeric peptides of CNP and BNP. That is, as used herein, the term “CNP or BNP” refers to CNP or BNP which may be: a chimeric peptide of CNP and BNP forming a ring structure by an intermolecular disulfide bond,
- the CNP is a peptide selected from the group consisting of CNP-22, CNP-53, a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of CNP-22 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s), or a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of CNP-53 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s), and in which the BNP is a peptide selected from the group consisting of BNP-26, BNP-32, BNP-45, a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of BNP-26 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s), a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of BNP-32 having deletion(s), substitution(s), or addition(s)
- CNP-22 and CNP-53 there are no particular limitations to the origin of CNP-22 and CNP-53, provided that they possess CNP activity, but the CNP derived from mammals including humans or birds are preferred, and more preferably, CNP derived from humans, monkeys, mice, rats or pigs, and most preferably, CNP derived from humans.
- BNP-26, BNP-32 and BNP-45 there are no particular limitations to the origin of BNP-26, BNP-32 and BNP-45, provided that they possess BNP activity, but the BNP derived from mammals including humans or birds is preferred, and the BNP derived from humans, monkeys, mice, rats or pigs is more preferred, and the BNP derived from humans is particularly preferred.
- the derivatives of chimeric peptide of CNP and BNP mean those which have, in the amino acid sequences of the chimeric peptide of CNP and BNP, deletion(s), addition(s) or substitution(s) of preferably 1-5 amino acid(s), more preferably 1-3 amino acid(s), and furthermore preferably 1 or 2 amino acid(s), while possessing CNP or BNP activity.
- Replaceable amino acids in the derivatives of the chimeric peptide of CNP and BNP are similar to the replaceable amino acids in the CNP derivatives.
- the derivatives of chimeric peptide of CNP and BNP may include those amidated or methoxylated at a C terminal of the chimeric peptide of CNP and BNP, those modified with the addition of polyethylene glycol or fatty acids in the chimeric peptide of CNP and BNP, and, glycosylated or alkylated chimeric peptide of CNP and BNP, provided that they have CNP or BNP activity.
- amino acid sequence of human CNP peptide represented by SEQ ID NO: 1 and the amino acid sequence of human BNP peptide represented by SEQ ID NO: 2 have, as shown in FIG. 1 , four mutually different sequences divided by three common sequences represented by the amino acid sequences of “CFG”, “DRI” and “SGLGC”. Accordingly, as a chimeric peptide of CNP and BNP, at least 14 kinds of chimeric peptide represented by SEQ ID NOs 3-16 are listed based on the combination of these four mutually different sequences. Then, these chimeric peptides and their derivatives are considered to have characteristics common to CNP and BNP. Namely, these chimeric peptides and their derivatives can be used as the active ingredient of the therapeutic preparation for rhinitis of the present invention.
- any heretofore known chimeric peptides of CNP and BNP or derivatives thereof in the present invention provided that they possess CNP or BNP activity.
- aquaretic polypeptides and natriuretic polypeptides disclosed as ABC-NP, ABC-NP1, BC-NP, etc. in JP A 2010-502231 may be used. These polypeptides are exemplified as amino acid sequence of SEQ ID Nos. 17-20.
- CNP or BNP activity can be easily tested using heretofore known procedures, such as an examination of the activity of cGMP production in the cells expressing NPR-A receptors or in the cells expressing NPR-B.
- the chimeric peptides of CNP and BNP and their derivatives of the present invention can also be manufactured by chemical synthesis or by genetic manipulation.
- Indications of treatment by the therapeutic preparation for rhinitis of the present invention are not particularly limited, as long as the disease is a so-called rhinitis, which induces an inflammation of the nasal mucous membrane and shows symptoms such as sneezing, runny nose and stuffy nose.
- the therapeutic preparation for rhinitis of the present invention may be applied to various types of rhinitis.
- rhinitides to which the therapeutic preparation for rhinitis of the present invention can be applied include infectious rhinitis, hypersensitive non-infectious rhinitis, irritant rhinitis, atrophic rhinitis or specific granulomatous rhinitis; preferably it is infectious rhinitis and hypersensitive non-infectious rhinitis in terms of therapeutic effects, and particularly preferably it is hypersensitive non-infectious rhinitis.
- Infectious rhinitis may be acute rhinitis or chronic rhinitis, and preferably acute rhinitis.
- sneezing, excess rhinorrhea (nasal drip), nasal occlusion (stuffy nose), and impairment of the sense of smell, etc. can be rapidly cured.
- Hypersensitive non-infectious rhinitis may be combined-type rhinitis (hypersensitive nose) including allergic rhinitis and non-allergic rhinitis; rhinorrhea-type rhinitis selected from gustatory rhinitis, cold air inhalation-induced rhinitis, and senile rhinitis; congestive-type rhinitis selected from drug-induced rhinitis, psychogenic rhinitis, pregnancy rhinitis, endocrine rhinitis and cold-induced rhinitis; or dry-type rhinitis.
- hypersensitive nose including allergic rhinitis and non-allergic rhinitis
- rhinorrhea-type rhinitis selected from gustatory rhinitis, cold air inhalation-induced rhinitis, and senile rhinitis
- congestive-type rhinitis selected from drug-induced rhinitis, psychogenic rhin
- allergic rhinitis or non-allergic rhinitis may include both perennial allergic rhinitis and seasonal allergic rhinitis.
- the therapeutic preparation for rhinitis of the invention exhibits extremely high efficacy and safety for allergic rhinitis, in particular perennial allergic rhinitis caused by house dust or mites, of which complete cure or long-term remission is considered to be difficult, as its effective therapeutic preparation.
- the present preparation is efficacious as a therapeutic preparation for various types of rhinitis with symptoms such as sneezing, runny nose and stuffy nose, derived from irritant rhinitis such as physical irritant-induced rhinitis, chemical irritant-induced rhinitis and radiation-induced rhinitis, as well as atrophic rhinitis and specific granulomatous rhinitis.
- the preparation can be effectively used for mixed-type rhinitis, nasal-occlusion-type rhinitis, or sneezing/rhinorrhea-type rhinitis in accordance with “Guidelines for medical care of nasal allergies, 2009 edition” (edited by the committee for creation of guidelines for medical care of nasal allergies).
- the therapeutic preparation for rhinitis of the present invention is those comprising C-type natriuretic peptide (CNP) or B-type natriuretic peptide (BNP) as the active ingredient, and its administration route and dosage form are not particularly limited.
- injections, oral medicines or external preparations can be used depending on the patient and symptoms.
- Specific examples include nasal drop preparations, gel preparations, ointment preparations, cream preparations, lotion preparations, spray preparations, liquid preparations, nasal spray preparations, patch preparations, aerosol preparations, jelly preparations, cataplasms, patch preparations, plaster preparations, suspension preparations, emulsion preparations, injection preparations, tablets, pills, capsules, granules, powders, etc.; liquid preparations may be adopted by selecting appropriate solvents. Any preparation can be produced in accordance with well-known or heretofore known methods.
- Preferable examples include nasal drop preparations, liquid preparations, gel preparations, spray preparations, ointment preparations, cream preparations, lotion preparations, or powder preparations; more preferable examples are nasal drop preparations, liquid preparations, gel preparations, powder preparations, aerosol preparations or spray preparations, and a particularly preferable example is liquid preparations.
- Nasal drop preparations of the present invention may be a liquid preparation or dry products such as a powder, and may comprise carriers or excipients, surfactants, suspending agents, mucosa-adherent bases and tonicity agents.
- tonicity agents include sodium chloride, glycerin, sodium bisulfite, benzalkonium chloride, fluctose, citric acid, sodium citrate, sodium dihydrogen phosphate (crystal), sodium hydroxide, D-sorbitol solution, nicotinic-acid amide, concentrated glycerin, propylene glycol, benzyl alcohol, boric acid, borax, macrogol 4000, sodium hydrogen phosphate, potassium dihydrogen phosphate, and sodium dihydrogen phosphate.
- suspending agents include crystalline cellulose-sodium carmellose and hydroxypropyl cellulose.
- a gel preparation may be a hydrous gel, an anhydrous gel, or a gel with a low water content comprising a gel-forming material that can swell. It may also be a hydrogel base or a lyogel base, and preferably a transparent hydrogel having an inorganic or organic polymer as a base. Similar to preparations comprising an oil or fat content, the gel itself is not absorbed by the nasal mucous membrane. Hydrogel bases have no fat and a consistency similar to that of ointment preparation, and aim at increasing the percutaneous absorbability of drugs. Lyogel bases are gelled by suspending stearyl alcohol, etc. in propylene glycol, and they have excellent absorbability by the nasal mucous membrane and hygroscopicity.
- the gel preparation of the present invention may be a gel preparation made by homogenously dispersing CNP or BNP as an active ingredient into a hydrophilic gel base comprising carboxy vinyl polymer, sodiumpolyacrylate, sodiumpolyacrylate, (vinyl methyl ether/ethyl maleate) copolymer, polymethacrylate, propylene glycol, etc.
- a liquid preparation means those wherein an active ingredient consisting of CNP or BNP is dissolved in a base such as alcohol, propylene glycol, polyethylene glycol or water.
- a base such as alcohol, propylene glycol, polyethylene glycol or water.
- it means a liquid preparation consisting of an aqueous solution wherein either CNP or BNP is dissolved in saline.
- an organic base such as alcohol, propylene glycol, polyethylene glycol, etc. may be mixed, in addition to the saline.
- An ointment preparation may comprise either a grease base or a water-soluble base, and both can be easily obtained in accordance with heretofore known methods.
- a grease base such as vaseline causes little irritation and is odorless, which is superior in protective action of the nasal mucous membrane.
- Water-soluble bases produce ointment preparations having a macrogol base as the main ingredient, and they have a strong action to absorb and remove aqueous discharges.
- a cream preparation may be an oil-in-water base (O/W) (vanishing cream) or a water-in-oil base (cold cream).
- An oil-in-water base has a smaller amount of oil-soluble component than water-soluble component, so that it has an advantage that the white color of the cream appears to disappear upon application.
- O/W oil-in-water base
- water-in-oil base water-in-oil base
- An oil-in-water base has a smaller amount of oil-soluble component than water-soluble component, so that it has an advantage that the white color of the cream appears to disappear upon application.
- it since it is easily absorbed by the nasal mucous membrane, it can be very applicable to chronic hypertrophic lesions.
- a lotion preparation means a liquid external preparation wherein CNP or BNP is dissolved or homogeneously dispersed in a liquid. Since lotion preparations are in a liquid state, they are suitable for use in the mucous membrane of the nasal cavities.
- the form of the lotion preparations may be a suspended lotion base and an emulsion lotion.
- a spray preparation refers to those wherein CNP or BNP is made into a solution, which is then sprayed by gas pressure. Sprays are convenient for application to a wide area.
- aqueous solution for example an aqueous solution wherein an appropriate amount of CNP or BNP is blended, saline can be used.
- aqueous solution wherein CNP or BNP is dissolved in a buffer that can retain CNP or BNP in a stable manner can be used.
- CNP or BNP can be administered in a pure dosage form or a dosage form wherein CNP or BNP is diluted with an inactive carrier.
- inactive carrier calcium carbonate or lactose can be used.
- povidone and lactose can be added as a hydrophilic aid. Since the nose has a potent discharge mechanism, administration in the form of dry powder is advantageous over liquid forms, because the duration of action is prolonged. Powders can be prepared by making fine powders through recrystallization, granulation, drying, or pulverization to a specific grain size.
- Aerosol preparations are prepared as follows: CNP or BNP is pulverized to a size of preferably 5 ⁇ m or smaller, a dispersing agent is added if necessary, which is then filled in a spraying device together with a propellant while cooling.
- a dispersing agent examples include nonionic surfactants commercially available under the brand name of Span 80 and Span 85, amphoteric surfactants such as soybean lecithin, and natural alcohols such as oleyl alcohol.
- Preferable propellants include fluorinated/chlorinated lower alkanes such as chlorofluorocarbon (CFC) 11, CFC 12, CFC 114 as well as mixtures thereof.
- various types of bases moisturizing agents, ultraviolet absorbers, alcohols, chelates, pH adjusters, preservatives, thickening agents, coloring agents, flavors, filling agents, excipients, disintegrating agents, extenders, binding agents, film forming agents, solubilizers, suspending agents, buffers, stabilizing agents, preserving agents, surfactants, antioxidative agents, dispersing agents, emulsifying agents, dissolving agents, solubilizing agents, etc. may be blended in combination.
- various drugs such as antiphlogistic analgesics, sterilizing agents and vitamins may be appropriately blended when necessary.
- excipients include lactose, corn starch, calcium phosphate, etc.
- binding agents include crystalline cellulose, mannitol, hydroxypropyl cellulose, hydroxypropyl methylcellulose, macrogol, etc.
- Preferable liquid preparations are CNP or BNP aqueous solution preparations comprised of an appropriate amount of CNP or BNP dissolved in saline. It is possible to use a liquid preparation by filling a spraying device with it.
- These solution preparations may be blended with general additives, for example, sedimentation-preventing agents such as sorbitol, syrup, methylcellulose, gelatin, hydroxyl ethylcellose, carboxy methylcellulose, aluminum stearate gel or hydrogenated food fat; emulsifying agents such as lecithin, sorbitan monooleate, and gum arabic; oily esters such as almond oil, purified coconut oil, and glycerin esters; nonaqueous media (which may include food oils) such as propylene glycol and ethyl alcohol; preservatives such as p-hydroxylbenzoic acid methyl ester, ethyl ester or propyl ester, or sorbic acid; and if necessary, general flavoring agents or
- enteric-coated drugs when oral preparations of the present therapeutic preparation for rhinitis are to be produced, it is preferable to make enteric-coated drugs by coating the surface of the tablets or granules with an enteric coat, or by using enteric-coated capsules, in order to suppress disintegration of the peptide CNP or BNP by gastric acid.
- solutions may be made into, in addition to the above-mentioned aqueous solutions, aqueous or oily suspension preparations or emulsion preparations.
- solutions can be provided as dry pharmaceutical compositions, which can be re-dissolved into water or an appropriate medium prior to their use.
- the therapeutic preparation for rhinitis of the present invention is a preparation made by blending an appropriate amount of CNP or BNP with various bases, as well as additives if necessary. Dosage form and base of the therapeutic preparation for rhinitis of the present invention can be appropriately selected depending on the symptoms and patient.
- one preferred nasal drop preparation is an aqueous solution preparation.
- Such an aqueous solution preparation can be prepared as follows: for example, 0.1-1 mg of human CNP-22 (Peptide Institute, Inc.) as the principal agent is dissolved in 10 ml of saline to prepare the aqueous solution preparation with a CNP concentration of 10-100 ⁇ g/ml.
- the CNP concentration in this case is 10-100 ⁇ g/g by weight.
- the effect is insufficient when the CNP concentration is 20 ⁇ g/ml or less, but it is sufficient when the CNP concentration is 100 ⁇ g/ml; accordingly, it is not necessary to use a concentration exceeding 200 ⁇ g/ml.
- Preferable CNP concentration in aqueous solutions is 10-500 ⁇ g/g, more preferably 20-200 ⁇ g/g, furthermore preferably 50-200 ⁇ g/ml, and particularly preferably 50-100 ⁇ g/ml.
- BNP aqueous solutions can be produced similarly to the CNP aqueous solution preparations, and preferable concentrations are the same as those of CNP aqueous solutions.
- Gel preparations can be obtained by, in accordance with heretofore known or well-known methods, dissolving an appropriate amount of CNP into distilled water or saline to make an aqueous solution, and by mixing and stirring a heretofore known or well-known or commercially-available gelling agent with the solution.
- Preferable CNP concentrations in the gel preparations are 10-500 ⁇ g/g, more preferably 20-200 ⁇ g/g, furthermore preferably 50-200 ⁇ g/g, particularly preferably 10-100 ⁇ g/g, and even furthermore preferably 50-100 ⁇ g/g, and most preferably 30-100 ⁇ g/g.
- gelling agents consisting of macromolecular inorganic components include hydrous or water-absorbing silicates, such as aluminum silicate, for example bentonite, magnesium-aluminum silicate, and colloidal silica.
- silicates such as aluminum silicate, for example bentonite, magnesium-aluminum silicate, and colloidal silica.
- the gelling agent consisting of macromolecular organic substances natural, semi-synthetic, or synthetic polymers may be used.
- natural and semi-synthetic polymers include, polysaccharides such as cellulose, starch, tragacanth, gum arabic, xanthan gum, agar-agar, gelatin, alginic acid and its salts, for example sodium alginate and its derivatives, lower alkyl cellulose, for example methyl cellulose or ethyl cellulose, carboxy- or hydroxyl-lower-alkyl cellulose, for example carboxymethyl cellulose, or hydroxypropyl cellulose, etc.
- polysaccharides such as cellulose, starch, tragacanth, gum arabic, xanthan gum, agar-agar, gelatin, alginic acid and its salts, for example sodium alginate and its derivatives, lower alkyl cellulose, for example methyl cellulose or ethyl cellulose, carboxy- or hydroxyl-lower-alkyl cellulose, for example carboxymethyl cellulose, or hydroxypropyl cellulose, etc.
- Examples of synthetic gelling agents include polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylic acid or polymethacrylic acid, etc. Only one kind of these gelling agents, or a mixture of two or more kinds of these may be used.
- a percutaneous absorption aid may be added.
- the percutaneous absorption aid include, for example, limonene, menthol, salicylic acid, hyaluronic acid, oleic acid, N,N-diethyl-m-toluamide, n-butyl stearate, benzyl alcohol, isopropylmyristate, isopropyl palmitate, polypropylene glycol, crotamiton, diethyl sebacate, N-methylpyrrolidone, N-ethyl pyrrolidone, lauryl alcohol, etc.
- an antiseptic agent and an antioxidant may be added if necessary.
- the concentration of CNP or BNP in the therapeutic preparation for rhinitis may be appropriately selected with consideration given to symptoms, age, and dosage form, etc.
- Preferable concentrations of CNP or BNP are, for nasal drop preparations such as solutions, gel preparations, lotion preparations, and aerosols, etc., 10-500 ⁇ g/g, and more preferably 20-200 ⁇ g/g. For younger patients and patients with sensitive skin, those with a concentration of 20-100 ⁇ g/g are preferably used.
- Preferable CNP or BNP concentrations in the gel preparations are 10-100 ⁇ g/g, and particularly preferably 30-100 ⁇ g/g.
- Preferable CNP or BNP concentrations in the solutions are 20-200 ⁇ g/ml, and particularly preferably 50-200 ⁇ g/ml.
- the number of applications and the duration of application of the present therapeutic preparation for rhinitis differ depending on symptoms, age and dosage form, etc.; normally, once or twice a day for 2 to 7 days of application is sufficient.
- a 1000 ⁇ g/ml CNP liquid preparation was prepared by dissolving 3 mg of human CNP-22 (Peptide Institute, Inc.) as the principal agent in 3 ml of saline.
- 100 ⁇ l of the obtained 1000 ⁇ g/ml CNP solution preparation was diluted with 900 ⁇ l of saline to prepare the CNP nasal solution preparation with a CNP concentration of 100 ⁇ g/ml.
- the CNP nasal solution preparation with a CNP concentration of 50 ⁇ g/ml was prepared by diluting 50 ⁇ l of the 1000 ⁇ g/ml CNP solution preparation with 950 ⁇ l of saline.
- the CNP nasal solution preparation with a CNP concentration of 200 ⁇ g/ml was prepared by diluting 200 ⁇ l of the 1000 ⁇ g/ml CNP solution preparation with 800 ⁇ l of saline.
- CNP nasal solution preparations with concentrations of 100 ⁇ g/ml, 50 ⁇ g/ml, and 200 ⁇ g/ml obtained as above were used to fill a metered-dose nasal spraying device (Astellas Pharma, Inc.; a metered-dose nasal spraying device for Intal nasal solution was used), and the device was adjusted so that the amount of a solution delivered by one spray is 130 ⁇ l. Accordingly, the amount of CNP contained in one spray of solution of the CNP nasal solutions with 100 ⁇ g/ml, 50 ⁇ g/ml, and 200 ⁇ g/ml are 13 ⁇ g, 6.5 ⁇ g, and 26 ⁇ g, respectively.
- a 1000 ⁇ g/ml BNP solution preparation was prepared by dissolving 3 mg of human BNP-32 (Peptide Institute, Inc.) as the principal agent in 3 ml of saline. 100 ⁇ l of the obtained 1000 ⁇ g/ml BNP solution preparation was diluted with 900 ⁇ l of saline to prepare the BNP nasal solution preparation with a BNP concentration of 100 ⁇ g/ml. Similarly, the BNP nasal solution preparation with a BNP concentration of 50 ⁇ g/ml was prepared by diluting 50 ⁇ l of the 1000 ⁇ g/ml BNP solution preparation with 950 ⁇ l of saline. Furthermore, similarly, the BNP nasal solution preparation with a BNP concentration of 200 ⁇ g/ml was prepared by diluting 200 ⁇ l of the 1000 ⁇ g/ml BNP solution preparation with 800 ⁇ l of saline.
- BNP nasal solution preparations with concentrations of 100 ⁇ g/ml, 50 ⁇ g/ml, and 200 ⁇ g/ml obtained as above were used to fill a metered-dose nasal spraying device (Astellas Pharma, Inc.; a metered-dose nasal spraying device for Intal nasal solution was used), and the device was adjusted so that the amount of a solution preparation delivered by one spray is 130 ⁇ l. Accordingly, the amount of BNP contained in one spray of solution for the BNP nasal solution preparations with 100 ⁇ g/ml, 50 ⁇ g/ml, and 200 ⁇ g/ml are 13 ⁇ g, 6.5 ⁇ g, and 26 ⁇ g, respectively.
- a 500 ⁇ g/ml ANP solution preparation was prepared by dissolving 0.5 mg of human ANP-28 (Peptide Institute, Inc.) in 1 ml of saline. 1 ml of the obtained 500 ⁇ g/ml ANP solution was diluted with 9 ml of saline to prepare the ANP nasal solution preparation with an ANP concentration of 50 ⁇ g/ml.
- the ANP nasal solution preparation with an ANP concentration of 50 ⁇ g/ml obtained as above was used to fill a metered-dose nasal spraying device (Astellas Pharma, Inc.; a metered-dose nasal spraying device for Intal nasal solution was used), and the device was adjusted so that the amount of a solution preparation delivered by one spray is 130 ⁇ l. Accordingly, the amount of ANP contained in one spray of solution is 6.5 ⁇ g.
- the subjects are patients in whom conventional external medicines such as steroids are not sufficiently effective, or patients in whom the use of steroids must be avoided due to local side effects such as nasal irritation and dryness. Diagnosis and treatment of these subjects were performed by the present applicant as a medical doctor.
- Severity evaluation of symptoms of allergic rhinitis was performed, in principle, in accordance with “Guidelines for medical care of nasal allergies, 2009 edition” (edited by the committee for creation of guidelines for medical care of nasal allergies), by classifying into 5 stages as shown below.
- “mixed type” refers to the cases wherein both of the sneezing attack or rhinorrhea and the nasal occlusion were presented with the same severity.
- evaluation scores for sneezing fit, rhinorrhea and nasal occlusion are as described in the table below.
- Administration tests of the nasal solution preparations of the present invention were performed by, in principle, spraying the CNP nasal solution, BNP nasal solution or ANP nasal solution used to fill a nasal spraying device twice a day at awakening time and before bedtime, with one spray in each nostril at each time. Accordingly, the amount of application of CNP, BNP or ANP per one spray for the 100 ⁇ g/ml CNP nasal solution, BNP nasal solution, and ANP nasal solution corresponds to 13 ⁇ g. Similarly, the amounts of application of CNP, BNP or ANP per one spray for the 50 ⁇ g/ml and 200 ⁇ g/ml CNP/BNP/ANP solutions correspond to 6.5 ⁇ g and 26 ⁇ g, respectively.
- Tables 4-7 show the results of the subjects' history taking, diagnosis, i.e., sex, age, past history, family history, scratch test result, diagnostic finding, and symptom evaluation of the subject in each case.
- the after-mentioned subject of Case 10 was enrolled in the study, and the 100 ⁇ g/ml CNP nasal solution was applied once a day for 7 days consecutively, then after 14 days of discontinuation, the 50 ⁇ g/ml CNP nasal solution was tested.
- the time required for the manifestation of the effect is approximately 20 min, that is, compared to the 100 ⁇ g/ml CNP nasal solution, approximately twice as long a time is required for the manifestation of the drug efficacy, with a slightly lower degree of improvement of nasal occlusion.
- the 200 ⁇ g/ml CNP nasal solution showed significant effects on rhinitis without irritation, but the effects were not doubled compared to the case of 100 ⁇ g/ml CNP nasal solution.
- Dosage form CNP nasal solution CNP nasal solution CNP nasal solution CNP nasal solution CNP nasal solution CNP nasal solution preparation preparation preparation preparation preparation preparation Dosage 100 ⁇ g/ml 100 ⁇ g/ml 100 ⁇ g/ml 100 ⁇ g/ml 100 ⁇ g/ml 100 ⁇ g/ml Number of Morning + before Once a day Once a day Once a day Once a day Once a day nasal bedtime (2 times) applications Number of 5 days 1 day 1 day 1 day 7 days days applied Symptom 1 hr later, nasal Nasal passages Nasal passages Nasal passages 10 min later, nasal improvement occlusion was opened immediately opened immediately opened immediately occlusion and runny by initial markedly after the after the after the nasal nose completely nasal improved and she application and application and application and stopped.
- nasal occlusion was rhinorrhea and fullness also easily and sleep markedly improved markedly improved nasal occlusion disappeared. well. 10 min later. 10 min later, nasal were markedly drip stopped 20 min improved 25 min later. later, then rhinorrhea stopped.
- the effects lasted symptom once a day, nasal a day, effects a day, effects all day by all day by improvement itching and a lasted until the lasted until the application once in application once a nasal occlusion next day and next day, and the late afternoon, day and nasal sensation improvement in rhinorrhea and and for 3 days symptoms stayed disappeared and rhinorrhea and nasal occlusion thereafter, runny improved, with she no longer nasal occlusion was were improved to a nose reduced to a watery nasal drip needed to blow her maintained. barely-troublesome barely-troublesome stopped and nasal nose. After level. level without any passages feeling application treatment. open.
- the subject is a 48-year-old female who is a patient with severe mixed-type rhinitis. She has a past history of atopic dermatitis, and her child also suffers from atopic dermatitis and allergic rhinitis. Scratch test results are: house dust 3+ and mite 3+. She has very strong nasal occlusion, with mouth breathing for a considerable amount of time a day, and also has strong watery nasal drip. She is unable to use steroid nasal sprays due to nasal irritation.
- Example 2 As a preliminary test, the CNP nasal solution with a concentration of 100 ⁇ g/ml obtained in Example 1 was sprayed once into each nostril of the subject (the amount of CNP administered to one nasal cavity was 13 ⁇ g). As a result, 15 min later, rhinorrhea was relieved and nasal occlusion was improved. Permeability of the CNP nasal solution was good without nasal irritation, and side effects such as local irritation symptoms were not observed.
- the present CNP nasal solution was sprayed once in each nostril, then the symptoms reduced and rhinorrhea and nasal occlusion were markedly improved for the whole day of day 3. After discontinuation of the nasal spray, the effects persisted for 2-3 days without symptoms.
- the subject is a 39-year-old female who is a patient with severe sneezing/rhinorrhea-type rhinitis. She has a past history of atopic dermatitis, and her child also suffers from atopic dermatitis. Scratch test results are: house dust 2+, mite 2+, cedar 2+, orchard grass 3+, and ragweed 1+. She is a severe case having both symptoms of nasal occlusion, with sneezing and watery nasal drip requiring a pile of tissue paper, and is taking second-generation antihistamine drugs every day.
- Example 2 the CNP nasal solution with a concentration of 100 ⁇ g/ml obtained in Example 1 was sprayed once into each nostril of the subject (the amount of CNP administration in one nasal cavity was 13 ⁇ g). As a result, nasal itching disappeared immediately after the spraying, and rhinorrhea was relieved after 10 min.
- the CNP nasal solution had a good permeability without nasal irritation, and no local side effects were observed. By use only once a day, the nose was not congested and absolutely no rhinorrhea was observed. The effects lasted for a whole day.
- the subject is a 32-year-old female who is a patient with severe mixed-type rhinitis. She has a past history of atopic dermatitis, and her mother also suffers from atopic dermatitis. Scratch test results are: house dust 1+, mite 1+, cedar 1+, orchard grass 2+, and ragweed 1+. This subject has a very strong nasal occlusion, and is unable to smell. She also has severe watery rhinorrhea. Steroid nasal spray induced nasal irritation and dryness sensation as if the nose was in contact with the back of the throat, and no satisfactory effects were obtained except that runny nose slightly reduced after the application.
- Example 1 Similar to test example 1, the CNP nasal solution with a concentration of 100 ⁇ g/ml obtained in Example 1 was sprayed once into each nostril of the subject (the amount of CNP administered in one nasal cavity was 13 ⁇ g). As a result, the nasal occlusion sensation disappeared and rhinorrhea was relieved 5 min later. No local irritation symptoms were observed. Thereafter, spraying once a day in the morning was continued, then nasal occlusion sensation disappeared and she became able to smell, watery nasal drip was improved, and rhinorrhea was completely relieved 3 days later. No local side effects such as irritation, as well as no systemic side effects such as drowsiness were observed.
- the subject is a 23-year-old male who is a patient with severe nasal-occlusion-type rhinitis. He has a past history of childhood asthma, and his mother suffers from atopic dermatitis. Scratch test results are: house dust 3+, and mite 3+. This subject has a very strong tendency of nasal occlusion, with mouth breathing for a considerable amount of time a day. In addition, because of the withdrawal difficulty symptoms due to long-term use of systemic steroids, this subject must avoid the use steroids.
- Example 1 Similar to test example 1, the CNP nasal solution with a concentration of 100 ⁇ g/ml obtained in Example 1 was sprayed once into each nostril of the subject (the amount of CNP administration in one nasal cavity was 13 ⁇ g). As a result, nasal occlusion sensation disappeared within 5 to 10 min. The effects lasted for one day, and he was able to breathe easily with open nasal passages. After the application of once a day for 4 days, the application was discontinued, but the effects lasted for about 3 days thereafter.
- the CNP nasal solution has a good permeability without irritation or local side effects.
- the CNP nasal solution of the present invention has remarkable effects, and can be a great relief for patients with rhinitis who must avoid the use of steroid preparations.
- the subject is a 24-year-old female who is a patient with severe mixed-type rhinitis. She has a past history of atopic dermatitis, and her younger sister also suffers from atopic dermatitis. Scratch test results are: house dust 3+, mite 3+, cedar 3+, orchard grass 2+, and ragweed 2+.
- the subject goes through mouth breathing for a considerable amount of time a day, and has a very strong tendency of nasal occlusion, with severe nasal drip. She dose not use steroid nasal sprays because of nasal irritation and dryness.
- Example 1 Similar to test example 1, the CNP nasal solution with a concentration of 100 ⁇ g/ml obtained in Example 1 was sprayed once into each nostril of the subject (the amount of CNP administered in one nasal cavity was 13 ⁇ g). As a result, nasal occlusion sensation was improved 20 min later, and rhinorrhea was relieved. The effects lasted for one day, and alleviation of the nasal occlusion and rhinorrhea persisted on the next day and thereafter.
- the subject is a 37-year-old female who is a patient with severe mixed-type rhinitis. She has a past history of atopic dermatitis, and her mother and elder sister also suffer from atopic dermatitis. Scratch test results are: house dust 3+ and mite 3+.
- This subject has, similar to Case 5, mouth breathing for a considerable amount of time a day, and has a very strong tendency of nasal occlusion, with severe nasal drip. The subject was suffering from strong nasal occlusion and sneezing at night, as well as nasal itching. She dose not use steroid nasal sprays because of nasal dryness.
- Example 2 The CNP nasal solution with a concentration of 100 ⁇ g/ml obtained in Example 1 was sprayed once into each nostril of the subject before bedtime (the amount of CNP administration in one nasal cavity was 13 ⁇ g); 1 hr later, nasal occlusion was markedly improved and she was able to breathe easily and sleep well with well-opened nasal passages even in the early hours of the morning, so she reported.
- the CNP nasal solution of the invention is re-sprayed once into each nostril on the next morning, following the administration previous night, then nasal itching and nasal occlusion sensation disappeared for the whole day.
- Watery nasal drip was improved to a condition in which blowing of nose was not required. No local irritation symptoms were observed. Thereafter, because the symptoms had stabilized by the twice a day application for 5 days, the application was discontinued. The effects persisted for 4-5 days after the discontinuation, and the improved states of nasal itching, nasal occlusion and rhinorrhea were maintained.
- the subject is a 39-year-old female who is a patient with severe mixed-type rhinitis. She has a past history of atopic dermatitis, and her child also suffers from atopic dermatitis. Scratch test results are: house dust ⁇ , mite 2+, cedar ⁇ , orchard grass 3+, and ragweed ⁇ .
- This subject similar to Case 6, breathes through her mouth for a considerable amount of time a day, and has a very strong tendency of nasal occlusion, with severe nasal drip. In particular the subject was suffering from severe rhinorrhea, nasal occlusion and sneezing in the early hours of the morning, as well as nasal itching.
- Example 1 the CNP nasal solution with a concentration of 100 ⁇ g/ml obtained in Example 1 was sprayed once into each nostril of the subject (the amount of CNP administered in one nasal cavity was 13 ⁇ g); immediately after spraying, the nasal passages opened, and the nasal occlusion was markedly improved after 10 min. She also reported that she was able to breathe easily. Watery nasal drip, that had continuously discharged if the nostrils were not packed with tissue paper, stopped. With an application once a day, the effects lasted until the next day, and the improvements in nasal occlusion and rhinorrhea were maintained.
- the CNP nasal solution of the present invention is a relief for rhinitis patients with whom the use of conventional steroids and antihistamine drugs should be avoided or inapplicable.
- the subject is a 39-year-old female who is a patient with moderate mixed-type rhinitis. She has a past history of atopic dermatitis, childhood asthma and sinusitis, but her family members do not suffer from any of these diseases or allergic rhinitis.
- Scratch test results are: house dust 2+, mite 3+, cedar 2+, orchard grass 1+, ragweed ⁇ , and cat hair 3+. This subject goes through mouth breathing several times a day, and has a strong tendency of nasal occlusion. She did not use steroids because she had suffered from sinusitis one and half years ago.
- Example 2 The CNP nasal solution with a concentration of 100 ⁇ g/ml obtained in Example 1 was sprayed once into each nostril of this subject (the amount of CNP administered in one nasal cavity was 13 ⁇ g); as a result, the nasal passages opened immediately after spraying, and the nasal occlusion was markedly improved after 10 min, so that she could breathe easily. 20 min later, watery nasal drip stopped. Moreover, she reported that she could breathe easily.
- the subject is a 21-year-old male who is a patient with severe nasal-occlusion-type rhinitis. He has a past history of atopic dermatitis and allergic conjunctivitis, and his mother also suffers from atopic dermatitis. Scratch test results are: house dust 2+, mite 3+, cedar 2+, orchard grass 3+, and ragweed 1+. This subject, similar to Case 7, breathes through his mouth for a considerable amount of time a day, and has a very strong tendency of nasal occlusion. He had used steroids in the past, but nasal occlusion was not improved sufficiently. Nasal drip was not so severe.
- the CNP nasal solution with a concentration of 100 ⁇ g/ml obtained in Example 1 was sprayed once into each nostril of this subject (the amount of CNP administered in one nasal cavity was 13 ⁇ g); as a result, immediately after spraying, the nasal passages opened, and the nasal occlusion was markedly improved and rhinorrhea was relieved after 25 min without any irritation symptoms.
- the effects lasted for one day and thereafter runny nose almost reduced to a barely-troublesome level for 3 days without any additional treatment, and blowing of his nose was hardly required. During this time, internal administration of antihistamine drugs was not necessary.
- the subject is a 55-year-old female who is a patient with severe mixed-type rhinitis. She has a past history of atopic dermatitis, and her child also suffers from atopic dermatitis. Scratch test results are: house dust 1+, mite 2+, cedar 2+, orchard grass 3+, and ragweed 2+.
- This subject has a strong nasal occlusion, and always has aural fullness. Oral steroids and steroid sprays were applied to this subject three times a day, but the effects on the nasal occlusion were not sufficient, and the durability of the effects was poor, while improvement in rhinorrhea was insufficient. Upon application of steroid sprays, she had a headache with a feeling of heaviness from the back of the nose to the head and drowsiness.
- the CNP nasal solution with a concentration of 100 ⁇ g/ml obtained in Example 1 was sprayed once into each nostril of this subject (the amount of CNP administered in one nasal cavity was 13 ⁇ g); as a result, nasal occlusion and runny nose stopped completely without irritation symptoms after 10 min. Thereafter, the CNP nasal solution of the invention was applied twice in the morning and before bedtime without taking steroids internally, then nasal occlusion and rhinorrhea were markedly improved, and aural fullness also disappeared. The effects lasted for a whole day with application once daily thereafter, and nasal symptoms were markedly improved, with runny nose stopped and nasal occlusion suppressed with a feeling of open nasal passages. It was not necessary to use internal steroids or injections which had previous been continuously used.
- the application was discontinued after 7 days of application of the 100 ⁇ g/ml CNP nasal solution, but the effects lasted for approximately 1 week and the condition of reduced nasal occlusion and rhinorrhea was maintained.
- the application of the 50 ⁇ g/ml CNP nasal solution at an interval of once a day was started and continued for 5 days; then, nasal occlusion was relieved 20 min after the nasal spraying, and rhinorrhea was also improved to the level of 3 to 4 times a day of nose blowing. Moreover, aural fullness had disappeared.
- Runny nose does Constant watery Watery nasal Watery nasal (average nose not stop all day rhinorrhea if drip discharges drip number of (21 or more) (21 or more) the nostrils continuously continuously nose blows were not packed and discharges so a day) (21 or more) perennially. that he uses 2 (approx. 20) boxes of tissue paper per day. (21 or more) Nasal Has mouth Due to strong Almost no mouth Fairly strong Almost no nasal Completely ccclusion breathing only nasal occlusion, breathing, but occlusion, with occlusion occluded all at night due to mouth breathing, has nasal mouth breathing (less than +) day. nasal at intervals of occlusion. for a occlusion. the day.
- Dosage BNP nasal BNP nasal BNP nasal BNP nasal BNP nasal BNP nasal BNP nasal BNP nasal BNP nasal form solution solution solution solution solution preparation preparation preparation preparation preparation preparation Dosage 50 ⁇ g/ml 50 ⁇ g/ml 100 ⁇ g/ml 50 ⁇ g/ml 200 ⁇ g/ml 50 ⁇ g/ml Number of Once in the Twice in the Once in the Once before Once a day Once in the nasal morning, or morning and at morning bedtime morning, or applications twice in the night twice in the morning and at morning and at night night night Number of 5 days 7 days 1 day 4 days 2 days 5 days days applied Symptom 10 min later, the Watery Runny nose The nose felt Nasal drip Watery nasal improvement by BNP solution rhinorrhea stopped 30 min relieved 5 min stopped 10 min drip and itching initial permeated the stopped 10 min later.
- the subject is a 42-year-old female who is a patient with most severe sneezing/rhinorrhea-type rhinitis. She has a past history of atopic dermatitis and allergic conjunctivitis, and her child suffers from allergic rhinitis and atopic dermatitis. Scratch test results are: house dust 2+, mite 2+, cedar ⁇ , orchard grass 3+, and ragweed 2+. This subject breathes through her mouth only at night due to nasal occlusion. This subject has suffered from atopic dermatitis since infancy, and also had a pollen allergy since she was 22-23 years old. Her symptoms worsen from May to early July every year. During this period, she sneezes constantly and has a runny nose. She does not feel any effects from steroid nasal sprays, and only experiences a strong dryness sensation with a pain as local irritation symptoms.
- the BNP nasal solution with a concentration of 50 ⁇ g/ml obtained in Example 1 was sprayed only once into each nostril of this subject (the amount of BNP administered in one nasal cavity was 6.5 ⁇ g); then 10 min later, the BNP nasal solution permeated the nasal mucous membrane and the symptoms were relieved, and watery nasal drip was improved. Since these effects were confirmed, she went out under the sun after spraying once in the morning on the 2nd day, and symptoms of pollen allergy were improved to a barely-troublesome level, and runny nose and sneezing were not observed until early evening.
- the subject is a 21-year-old female who is a patient with moderate mixed-type rhinitis. She has a past history of atopic dermatitis, and her father suffers from allergic rhinitis. Scratch test results are: house dust 1+, mite 2+, cedar 3+, orchard grass 1+, and ragweed 1+.
- This subject has suffered from atopic dermatitis since infancy, and also pollen allergy since 2 years ago; she has itching with a tickling sensation and rhinorrhea, nasal occlusion, which worsen particularly when she is tired. Nasal occlusion is strong and she goes through mouth breathing several times a day. Nasal steroids did not show sufficient effects on this subject at times of worsening of the symptoms, particularly on rhinorrhea.
- the BNP nasal solution with a concentration of 50 ⁇ g/ml obtained in Example 1 was sprayed only once into each nostril of this subject (the amount of BNP administered in one nasal cavity was 6.5 ⁇ g); 10 min later, watery rhinorrhea stopped and opening of the nasal passages was slightly improved; nasal occlusion was improved 20 min later.
- watery rhinorrhea and nasal occlusion were improved; accordingly the application was discontinued. Thereafter the effects lasted and rhinorrhea and nasal occlusion did not relapse for 4-5 days after the discontinuation of the nasal application, maintaining the relieved condition.
- the application of BNP nasal solution twice a day improved the symptoms from moderate to mild degree.
- the subject is a 28-year-old female who is a patient with the most severe rhinorrhea-type rhinitis. She has a past history of atopic dermatitis, and her younger sister suffers from allergic rhinitis and atopic dermatitis. Scratch test results are: house dust 1+, mite 2+, cedar 3+, orchard grass 3+, and ragweed 2+.
- This subject has suffered from atopic dermatitis since infancy, and symptoms of pollen allergy began to appear since around 20 years of age. In particular, runny nose and sneezing became very severe from around June, and she constantly blew her nose all day and runny nose was discharging when she bent her head down. This subject rarely undergoes mouth breathing, but has a nasal occlusion.
- the BNP nasal solution with a concentration of 100 ⁇ g/ml obtained in Example 1 was sprayed only once into each nostril of this subject (the amount of BNP administered in one nasal cavity was 13 ⁇ g); then 30 min later, runny nose stopped. Sneezing also stopped 1 hr after the application. Thereafter, the effects of the present nasal solution lasted for half a day, and it was around 9 o'clock in the evening when runny nose began to discharge again. The degree of improvement in symptoms by the present BNP nasal solution was from a severe to a mild level.
- the subject is a 46-year-old female who is a patient with most severe mixed-type rhinitis. She has a past history of atopic dermatitis and allergic conjunctivitis, and her child also suffers from allergic rhinitis. Scratch test results are: house dust 2+, mite 2+, cedar 3+, orchard grass 3+, and ragweed 2+.
- This subject has suffered from a runny nose, nasal occlusion and itching of the eyes since she was about 10 years old, and from the age of 20, rhinitis has become more severe and runny nose continuously discharged if the nostrils were not packed. This subject has a fairly strong nasal occlusion, and breathes through her mouth for a considerable amount of time a day.
- the BNP nasal solution with a concentration of 50 ⁇ g/ml obtained in Example 1 was sprayed only once into each nostril of this subject (the amount of BNP administered in one nasal cavity was 6.5 ⁇ g); 5 min later, she felt that her nose became lighter, and that her nasal passages opened after 15 min, with a marked improvement observed for rhinorrhea; the nasal occlusion sensation was markedly improved 30 min later, and itching of the throat was relieved. The subject was deeply moved by the efficacy of the present nasal solution.
- steroid nasal solution showed not only irritation symptoms with a feeling of nasal dryness, but also no efficacy at all. In the case of the present nasal solution however, it gave a rather moist feeling.
- the subject is a 45-year-old female who is a patient with severe sneezing/rhinorrhea-type rhinitis. She has a past history of atopic dermatitis, and her child also suffers from atopic dermatitis and allergic rhinitis. Scratch test results are: house dust 2+, mite 3+, cedar 1+, orchard grass 2+, and ragweed 1+. This subject continuously has perennial watery nasal drip, but has almost no nasal occlusion. Nasal application of steroid drops increased watery nasal drip, giving strong nasal irritation.
- the BNP nasal solution with a concentration of 200 ⁇ g/ml obtained in Example 1 was sprayed only once into each nostril of this subject (the amount of BNP administered in one nasal cavity was 26 ⁇ g); then 10 min later, nasal drip stopped. At this time, she reported that she had no local irritation symptoms or feelings of discomfort. Without combined internal application of antihistamine drugs, the effect of stopping nasal drip lasted all day. Watery nasal drip was suppressed by use once a day on the next day. The degree of symptoms was improved from severe to mild by the use of the BNP nasal solution for 2 days.
- the subject is a 35-year-old male who is a patient with the most severe mixed-type rhinitis. He has a complication of allergic conjunctivitis, and his father, elder sister and child suffer from allergic rhinitis. Scratch test results are: house dust ⁇ , mite 1+, cedar 2+, orchard grass 3+, and ragweed 1+.
- This subject has continuous watery nasal drip, so that he has to use 2 boxes of tissue paper to blow his nose. He also has nasal occlusion, and is in the condition of complete nasal stuffiness the entire time. These symptoms have persisted from late May to September. When nasal steroids are applied, he tends to have steroid resistance, so that the effect of the steroids cannot be attained from the second time use; moreover, he has strong irritation to the use of steroids.
- the BNP nasal solution with a concentration of 50 ⁇ g/ml obtained in Example 1 was sprayed only once into each nostril of this subject (the amount of BNP administered in one nasal cavity was 6.5 ⁇ g); then 10 min later, watery nasal drip, nasal itching, and nasal occlusion sensations were relieved. At this time, no irritation symptoms were observed. Subsequently, spraying once in the morning for 5 days resulted in disappearance of nasal itching 10 to 15 min later, and watery nasal drip stopped, and these effects lasted for one day without runny nose all day long. By use twice in the morning and at night, nasal occlusion was improved and internal use of antihistamine drugs became unnecessary. The degree of improvement in symptoms of a 5-day application period was from most severe to mild. After discontinuation of the usage, relieving effects of rhinorrhea and nasal occlusion were maintained for 7 days.
- Case 2 (comparative example 1) (comparative example 2) (comparative example 3) Sex Male Female Female Age 28 years old 28 years old 40 years old Severity level Severe Severe Severe Disease type Mixed Mixed Sneezing/ rhinorrhea Family history Father; atopic dermatitis, Mother; allergic rhinitis Child; atopic dermatitis allergic rhinitis Past history Atopic dermatitis Atopic dermatitis Scratch test House dust: 2+ House dust: 2+ House dust: 2+ Mite: 3+ Mite: 2+ Mite: 2+ Cedar: — Cedar: 2+ Cedar: 2+ Orchard grass: 3+ Orchard grass: 3+ Orchard grass: 3+ Orchard grass: 3+ Ragweed: 2+ Ragweed: 1+ Diagnostic finding Nasal drip Severe runny nose and sneezing (11-20) Nasal drip is severe, so that (average number (Approx.
- Dosage 50 ⁇ g/ml 50 ⁇ g/ml 50 ⁇ g/ml Number of nasal Twice in the morning and at night Twice in the morning and at night Twice in the morning and at night applications Number of days 7 days 2 days 3 days applied Symptom
- the number of nose blows reduced Rhinorrhea did not stop 15 min At 1 hr later, a slight improvement by to approximately 10 times a day, later, but at 20 min later she improvement in nasal itching initial nasal but runny nose and sneezing subjectively felt that nasal was observed, but was not so application persisted, and nasal occlusion passages had opened wider than apparent. Rhinorrhea was not sensation was not improved.
- the subject is a 28-year-old male who is a patient with severe mixed-type rhinitis. He has a past history of atopic dermatitis, and his father suffers from atopic dermatitis and allergic rhinitis. Scratch test results are: house dust 2+, mite 3+, cedar ⁇ , orchard grass 3+, and ragweed 2+. This subject has suffered from atopic dermatitis since infancy, and symptoms of pollen allergy appeared since he began to work; nasal occlusion becomes strong particularly around June and he tends to breathe through his mouth. Runny nose and sneezing are severe, and the number of times of nose blowing is approximately 20 times a day.
- the ANP nasal solution with a concentration of 50 ⁇ g/ml obtained in Example 1 was sprayed twice a day into each nostril of this subject (the amount of ANP administered in one nasal cavity was 6.5 ⁇ g); however, runny nose and sneezing did not stop and the nasal occlusion sensation was not improved.
- the ANP nasal solution was used twice a day for 7 days, but no changes in rhinorrhea and nasal occlusion were observed between before and after the application, indicating no improvement. The degree of improvement in symptoms was from severe before the ANP application to still severe after the ANP application.
- the subject is a 28-year-old female who is a patient with severe mixed-type rhinitis. She has a past history of atopic dermatitis, and her mother also suffers from allergic rhinitis. Scratch test results are: house dust 2+, mite 2+, cedar 2+, orchard grass 3+, and ragweed 2+. This subject has perennial persistent rhinitis, which particularly worsens between early summer and early autumn, with constant sneezing and watery nasal drips, and a strong nasal occlusion at night. She reported that she does not use steroids because of nasal irritation.
- the ANP nasal solution with a concentration of 50 ⁇ g/ml obtained in Example 1 was sprayed only once into each nostril of this subject (the amount of ANP administered in one nasal cavity was 6.5 ⁇ g); rhinorrhea did not stop 15 min later, but 20 min later she subjectively felt that nasal passages opened compared to the condition before application. However, thereafter within approximately 20 min, nasal occlusion re-occurred, and she had a tickly sensation.
- the ANP nasal solution was re-sprayed once at the night of the same day, and she subjectively felt that nasal passages opened 20 min later, but nasal occlusion re-occurred with a tickly sensation 15 min after the re-spraying.
- the subject is the same subject as the Case-2 subject in whom 100 ⁇ g/ml CNP nasal solution was tested. However, she was 40 years old when the ANP nasal solution was tested, because 11 months had passed since the CNP nasal solution was applied for 3 days. Background information including past history, family history, scratch test results, effects of steroids, etc. are the same as those described in test example 2 and Table 4.
- the ANP nasal solution with a concentration of 50 ⁇ g/ml obtained in Example 1 was sprayed once into each nostril of this subject (the amount of ANP administered in one nasal cavity was 6.5 ⁇ g); however, no immediate effect was observed. One hour later, a sign of slight improvement in nasal itching was observed, but it was not clear, and rhinorrhea was not improved.
- the ANP nasal solution was applied on the night of the same day, in the morning and at night of the next day and the day after the next day similarly to that mentioned above; 3 days later, only nasal itching was slightly improved, but its persistence was short, and nasal itching re-occurred in the afternoon when the nasal solution was used in the morning. No improvement in rhinorrhea was observed by application for 3 days, and she needed to blow her nose approximately 20 times a day. The severity level and degree of improvement was from severe to still severe, showing no apparent improvement effects.
- the nasal solutions of the present invention manifested their effects, at approximately 10 to 20 min after spraying, on the representative symptoms of rhinitis, i.e., nasal occlusion, sneezing attack and rhinorrhea. They are effective to any type of rhinitis including the mixed type, the nasal-occlusion type, and the sneezing/rhinorrhea type.
- the nasal solutions of the present invention including both the CNP nasal solutions and the BNP nasal solutions not only have remarkable effects of improvement in rhinitis, but also their manifestation of drug efficacy is extremely fast, i.e., they are fast-acting, without local side effects such as irritation and systemic side effects such as drowsiness. They are also long-lasting, with excellent compliance of application of only 1-2 times a day.
- the present nasal solutions have ideal characteristics as nasal drop preparations.
- a trend was observed that repeated applications result in an increase in the degree of improvement in some cases.
- nasal solutions of the present invention have more significant effects than those of conventional steroids and antihistamine drugs, and they are revolutionary drugs in terms of persistence, in that they can relieve symptoms by application only once a day.
- ANP and BNP share the same receptors, they were presumed to have identical effects; surprisingly, however, only BNP had significant effects of the two, contrary to expectations.
- the therapeutic preparations for rhinitis of the present invention are extremely effective for the treatment of various types of rhinitis, in particular allergic rhinitis, without a concern of causing side effects; thus, the present preparations are applicable to patients in whom conventional steroid nasal sprays and antihistamine drugs are not effective, or patients who must avoid the use of these drugs due to possible side effects, as well as young patients.
- the treatment should start with a steroid nasal spray alone, then the amount of the steroid nasal spray should be increased when no improvement is observed; and an antihistamine drug should be added for sneezing/nasal itching, ipratropium bromide hydrate should be added for rhinorrhea, and a vasoconstrictive agent or an oral steroid should be added to nasal occlusion; that is, a step-wise treatment is recommended.
- ARIA Allergic Rhinitis and Its Impact on Asthma
- conventionally-used steroid nasal sprays are used with a frequency of 2-4 times a day for adults, of which effects only last for a short period and the time required for manifestation of the effects is 1-3 days or more, requiring about 2 to 4 weeks before the maximum level of effects is reached.
- the level of satisfaction with the effects is low.
- they have side effects such as nasal irritation, dryness, and irritation in the throat, headache, and a risk of complication with infections due to long-term use.
- Mometasone furoate hydrate which has an advantage of spraying once a day, has become recently available in Japan; however, the effects reported on pollen allergy in Europe and the United States after 2 weeks of application are as follows: the degree of improvement in overall symptoms was 40-50%, the degree of improvement in nasal occlusion was 30-40%; thus, they are not sufficient from the viewpoint of therapeutic effects.
- the therapeutic preparations for rhinitis of the present invention can markedly improve severe rhinitis symptoms by application only once a day, without internal administration of steroids and antihistamine drugs.
- the effects are fast-acting and long-lasting. Namely, manifestation of the effects can be observed immediately after the application, and in most cases both nasal occlusion and rhinorrhea are markedly improved 10-20 min after the application. Moreover, in all the cases, excellent improvement effects on nasal occlusion and rhinorrhea are maintained all day by only spraying once or twice a day.
- the therapeutic preparations for rhinitis of the present invention are superior over conventional nasal solutions in terms of the fast-acting and long-lasting properties, are without side effects and have a good compliance; therefore they have ideal characteristics as a therapeutic preparation for allergic rhinitis.
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Abstract
The problem to be solved by the present invention is to provide an effective and safe therapeutic preparation for rhinitis, which not only has significant effects on improvement in rhinitis, in particular allergic rhinitis, but also is rapid in manifestation of efficacy, fast-acting, and long-lasting, without local side effects.
Means for solving the problem is a therapeutic preparation for rhinitis, in particular allergic rhinitis, comprising C-type natriuretic peptide (CNP) or B-type natriuretic peptide (BNP) as the active ingredient.
Description
- The present invention relates to a therapeutic preparation for rhinitis comprising C-type natriuretic peptide (CNP) or B-type natriuretic peptide (BNP) as the active ingredient.
- Rhinitis refers to what is known as an inflammation of the so-called nasal mucous membrane, and histopathologically it is an exudative inflammation, often exhibited as pyogenic inflammation and allergic inflammation. In any cases, it is characterized by exudation of fluid components from the blood vessels, edema, cellular exudates and supersecretion.
- Rhinitis includes various types such as acute rhinitis (so-called cold in the nose), chronic rhinitis, and allergic rhinitis depending on the cause and symptoms; usually, it is classified into four types depending on their causes and symptoms, namely infectious rhinitis, hypersensitive non-infectious rhinitis, irritant rhinitis, and others, as shown below.
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TABLE 1 1. Infectious (a) Acute rhinitis (b) Chronic rhinitis 2. Hypersensitive (a) Combined (i) Allergic Perennial allergic non-infectious type rhinitis (hypersensitive Seasonal allergic nose) rhinitis (ii) Vasomotor rhinitis Non-allergic (idiopathic rhinitis) Non-allergic rhinitis with eosinophilia syndrome (b) Rhinorrhea type Gustatory rhinitis Cold air inhalation-induced rhinitis Senile rhinitis (c) Congestive type Drug-induced rhinitis Psychogenic rhinitis Pregnancy rhinitis Endocrine rhinitis Cold-induced rhinitis (d) Dry type 3. Irritant (a) Physical irritant-induced rhinitis (b) Chemical irritant-induced rhinitis (c) Radiation-induced rhinitis 4. Others (a) Atrophic rhinitis (b) Specific granulomatous rhinitis - Hereinafter, rhinitis of these types is explained.
- Infectious rhinitis is classified into acute rhinitis (the so-called cold in the nose) which progresses within a short period, and chronic rhinitis which persists for a long period. Infective chronic paranasal sinusitis, in which nasal cavities mainly around the ethmoid sinus and middle nasal meatus are affected, is also included in the infectious rhinitis.
- Of the infectious rhinitis, most cases of the acute rhinitis are classified as a cold in the nose induced by infections mainly viral, but there are also many cases of acute simple rhinitis.
- Symptoms of acute viral rhinitis (the cold) are characterized by runny nose, stuffy nose, and postnasal rhinorrhea in which nasal drip flows into the throat, coughing, slight fever and others. To relieve stuffy nose, vasoconstrictive agents such as spray-type nasal drop preparations of phenylephrine and oral medicines of pseudoephedrin are used. However, the use of such spray preparations must be limited to 3 to 4 days. When used for a longer period than this, the effectiveness of the medicine is reduced and a rebound phenomenon, in which the nasal mucous membranes become more congested than prior to the use, occurs. In addition, while antihistamine drugs have an effect to suppress runny nose, they also have side effects such as drowsiness.
- In contrast, contributing factors of acute simple rhinitis include sinusitis, tonsillitis, and inflammation of adjacent organs such as the adenoids, as well as dust, soot, tobacco, air pollution, extreme temperature change, excessive dryness and moistness. Symptoms initiate with sneezing, and include excess rhinorrhea (nasal drip), nasal occlusion (stuffy nose), and impairment of the sense of smell; they resemble the symptoms of a cold of the nose, but do not include systemic symptoms such as fever. The nasal mucous membrane congests and swells. Disease is usually cured within 10 days, but occasionally bacterial infection occurs, worsening the symptoms and causing a fever. A prolonged course of the disease results in sinusitis or chronic rhinitis. For treatment, patients are rested and kept warm, and supportive measures are also taken, such as the use of antifebriles, analgesics, antitussive agents, and anti-inflammatory agents; when a bacterial infection occurs, antibiotics are used.
- Chronic rhinitis is a long-term infectious rhinitis; when contributing factors of acute rhinitis are not improved, acute rhinitis turns into chronic rhinitis. Chronic rhinitis is often associated with chronic sinusitis. Chronic rhinitis has three pathological conditions, each referred to as chronic simple rhinitis, chronic hypertrophic rhinitis, and atrophic rhinitis.
- Chronic simple rhinitis is a pathological condition in which the mucous membrane of the nasal cavities swells chronically due to repeated acute rhinitis. Symptoms of chronic simple rhinitis are mostly identical to those of hypertrophic rhinitis, and include nasal occlusion, excess rhinorrhea, impairment of the sense of smell and headache. However, it differs from chronic hypertrophic rhinitis in that swelling of the nasal mucous membrane is improved by vasoconstrictive agents. For treatment, removal of contributing factors is most important; conservative management such as the application of drugs and use of anti-inflammatory agents is also carried out.
- Chronic hypertrophic rhinitis is caused by severe long-lasting inflammation. Chronichypertrophicrhinitis is the most prevalent pathological condition among the chronic rhinitides, and exhibits severe swelling and thickening of the nasal mucous membrane.
- Chronic atrophic rhinitis refers to a pathological condition wherein the mucous membrane of the nasal cavities and the bone tissues of the nose become atrophied, resulting in widened nasal cavities. Stuffy nose occurs on both sides and purulent nose drips are discharged. Discharges inside the nose attach to the wall of the nasal cavity in a crust like manner, releasing a bad odor.
- Hypersensitive non-infectious rhinitis is a rhinitis wherein inflammation is caused by the mucous membrane of the nasal cavities that have become hypersensitive due to diathesis and some other reasons, so that it occurs by stimulations other than viruses and bacterial infection.
- Furthermore, hypersensitive non-infectious rhinitis can be classified into combined-type rhinitis (hypersensitive nose), rhinorrhea-type rhinitis, congestive-type rhinitis, and dry-type rhinitis. In addition, combined-type rhinitis (hypersensitive nose) is further classified into allergic rhinitis and non-allergic rhinitis. Furthermore, allergic rhinitis can be classified into, from their favored onset timing, perennial allergic rhinitis and seasonal allergic rhinitis, and non-allergic rhinitis can be classified into vasomotor rhinitis (idiopathic rhinitis) and non-allergic rhinitis with eosinophilia syndrome. In addition, rhinorrhea-type rhinitis can be classified into gustatory rhinitis, cold air inhalation-induced rhinitis, and senile rhinitis; and congestive-type rhinitis can be classified into drug-induced rhinitis, psychogenic rhinitis, pregnancy rhinitis, and cold-induced rhinitis.
- Combined-type rhinitis (hypersensitive nose) usually accompanies some of the symptoms including sneezing, watery rhinorrhea, and nasal occlusion (stuffy nose); for example, sneezing with watery rhinorrhea, sneezing with watery rhinorrhea and nasal occlusion.
- Of the combined-type rhinitides (hypersensitive nose), allergic rhinitis is induced by the immune response of the body against causative substances in the external environment.
- Causative substances of allergic rhinitis generally include house dust, house dust mites, fungi, pollens, grasses, trees, and animals. More specifically, allergic rhinitis is a type-I allergic disease of the nasal mucous membrane, and is characterized by, in principle, paroxysmal repetitive sneezing, watery rhinorrhea, and nasal occlusion. Since allergic rhinitis is a type-I allergic disease, patients often have an allergic disposition (past history, complication, and family history of allergy), and are characterized by an increased serum level of specific IgE antibodies, increases in the local mast cells as well as local and blood eosinophils, and enhancement of non-specific sensitivity of the mucous membrane.
- Of the allergic rhinitides, perennial allergic rhinitis is mostly caused by house dust and house dust mites, and seasonal allergic rhinitis is mostly caused by pollen.
- Of the non-allergic rhinitides, vasomotor rhinitis (idiopathic rhinitis) is a kind of chronic rhinitis with some symptoms similar to those of general allergic rhinitis, i.e., nasal occlusion (stuffy nose), sneezing, and watery rhinorrhea (runny nose), but showing no apparent antigens. Symptoms include, in addition to stuffy nose, swelling of the mucous membrane with various colors from red to violet. Sometimes mild inflammation is observed in the paranasal sinuses. For treatment, anti-histamine drugs and anti-allergy agents are used.
- Of the non-allergic rhinitides, non-allergic rhinitis with eosinophilia syndrome refers to a disease wherein an allergy test result is negative, but the amount of eosinophils in the nasal drip alone increases to some extent.
- The rhinorrhea-type hypersensitive non-infectious rhinitis is characterized by rhinorrhea, and there are three types: gustatory rhinitis, cold air inhalation-induced rhinitis, and senile rhinitis. Gustatory rhinitis often occurs during eating highly-irritating foods or very hot foods. Cold air inhalation-induced rhinitis is a rhinorrhea induced by inhalation of cold air, which is famous as the skier's nose. Senile rhinitis is also characterized by watery rhinorrhea, but its cause is unknown.
- Of the hypersensitive non-infectious rhinitides, congestive rhinitis is characterized by nasal occlusion as a predominant symptom, and is further classified into drug-induced rhinitis, psychogenic rhinitis, pregnancy rhinitis, endocrine rhinitis, and cold-induced rhinitis. Any of these types of rhinitis is characterized by congestion of the mucous membrane, and a stuffy nose is often observed.
- Among them, drug-induced rhinitis is characterized by stuffy nose as a predominant symptom, which is reportedly possibly induced as a side effect of long-term continuous administration of drugs such as sympatholytic antihypertensive drugs, vasodilatory antihypertensive drugs, -stimulation antihypertensive drugs, bronchodilators, anti-depressants, and contraceptive pills. However, the most frequently observed cause is the abuse of a vasoconstrictor nasal drop preparation against nasal occlusion. Psychogenic rhinitis is observed with chronic stress, depression, and neurosis, and is characterized by nasal occlusion. Pregnancy rhinitis occurs in the second trimester or later of pregnancy, and its onset is considered to be particularly associated with actions of female hormone, especially estrogen, on the blood vessels of nasal mucous membranes and on autonomic receptors. Endocrine rhinitis is known with emphasis on a decrease in thyroid activity. But the number of the case is small. Cold-induced rhinitis is considered to be induced by reflex vasodilation in nasal mucosa, via cold stimulation of the body, in particular the hands and feet.
- Of the hypersensitive non-infectious rhinitides, dry-type rhinitis (dry nose) is presumed to be induced as follows: when the humidity in a room becomes 20% or lower due to dry air and heating in winter, symptoms such as dry mucous membrane, crusting, and nasal bleeding occur, and hypersensitivity to irritation increases due to drying of the mucous layer, leading to nasal dryness and nasal occlusion sensations.
- Irritant rhinitis is often caused by the working environment of an occupation, and is classified into physical irritant-induced rhinitis, chemical irritant-induced rhinitis and radiation-induced rhinitis based on the cause. Such physical irritant-induced rhinitis and chemical irritant-induced rhinitis develop by physical or chemical, acute or chronic irritation of mucous membranes. Inflammation is sometimes caused by radiation of nasal mucous membranes, which is called radiation-induced rhinitis.
- Other types of rhinitis include atrophic rhinitis and specific granulomatous rhinitis. As symptoms of atrophic rhinitis (ozena), the nasal mucous membrane becomes thin and hard, and the nasal cavities extend to induce dryness; however, this type of rhinitis is currently rare in Japan. Specific granulomatous rhinitis is a rhinitis associated with granuloma, and includes specific rhinitis (tuberculosis, syphilis, etc.), sarcoidosis, and Wegener granulomatosis; however, the number of cases is extremely small.
- In any case, rhinitis is a state of the nasal mucous membrane that is swelling by inflammation, characterized by symptoms such as runny nose and stuffy nose, which disturbs the daily lives of patients who experience difficulty in breathing; thus, rhinitis is a troublesome disease.
- In the treatment of rhinitis, in particular allergic rhinitis, methods are generally selected based on the combination of severity level and disease type. The selection is not standardized, but according to “Guidelines for medical care of nasal allergies, 2009 edition” (edited by the committee for creation of guidelines for medical care of nasal allergies) treatment methods are as follows.
- For mild cases, the first choice should be second-generation antihistamine drugs or chemical mediator releasing suppressants. When side effects such as drowsiness and dry mouth are not observed, first-generation antihistamine drugs having a fast-acting property may be administered.
- In moderate cases, for sneezing/rhinorrhea type, one of the following:
- (1) second-generation antihistamine drugs,
(2) chemical mediator releasing suppressants, or
(3) steroid nasal sprays, is selected, and if necessary, either (1) or (2) is combined with (3). - In moderate cases, for nasal-occlusion type or mixed type with particularly severe nasal-occlusion cases, one of the following:
- (1) anti-leukotriene drugs,
(2) anti-prostaglandin D2/thromboxane A2 drugs, or
(3) steroid nasal sprays, is selected, and if necessary, either (1) or (2) is combined with (3). - In severe cases, when sneezing and rhinorrhea are particularly severe, a second-generation antihistamine drug is combined with a steroid nasal spray. Meanwhile, among severe cases of nasal-occlusion type or mixed type wherein nasal occlusion is particularly severe, an anti-leukotriene drug or anti-prostaglandin D2/thromboxane A2 drug is combined with a steroid nasal spray.
- Attempts to remove and avoid antigens are required in any case; when sequential therapy is possible, application of specific immunotherapy is a choice, with which long-term remission can be expected. In cases of apparent morphological defects such as deviation of the nasal septum, or in cases wherein effects of drug therapy on nasal occlusion are insufficient, operative therapy is one choice of treatment. Effectiveness of antihistamine nasal sprays has been reported, but they are considered to be inferior to steroid nasal sprays.
- As described above, representative treatments of allergic rhinitis include removal and avoidance of allergens, drug therapy, specific immunotherapy, and operative therapy; drugs used in the drug therapy can be classified into the following drug groups based on their action mechanism: steroids, histamine receptor antagonists, chemical mediator releasing suppressants, thromboxane A2 receptor antagonists, thromboxane A2 synthesis inhibitors, leukotriene antagonists, and Th2 cytokine inhibitors.
- Among them, examples of steroids include beclomethasone (brand name: Beconase, Aldecin, Rhinocort, Salcoat), fluticasone (brand name: Flixonase), etc. Examples of histamine receptor antagonists include ketotifen (brand name: Zaditen), mequitazine (brand name: Zesulan), fexofenadine (brand name: Allegra), ebastine (brand name: Ebastel), bepotastine (brand name: Talion), olopatadine (brand name: Allelock), loratadine (brand name: Claritin), etc. Examples of chemical mediator releasing suppressants include cromolyn (brand name: Intal) and tranilast (brand name: Rizaben), etc. Examples of thromboxane A2 receptor antagonists include seratrodast (brand name: Bronica) and ramatroban (band name: Bynas), etc. Examples of thromboxane A2 synthesis inhibitors include ozagrel (brand name: Domenan or brand name: Vega), etc. Examples of leukotriene antagonists include montelukast (brand name: Singulair, Kipres) and pranlukast (brand name: Onon), etc. Examples of Th2 cytokine inhibitors include suplatast (brand name: IPD), etc.
- Thus, while there are a number of drugs usable as therapeutic preparations for allergic rhinitis, steroids or histamine receptor antagonists are frequently used for moderate cases, and a combination of steroids and histamine receptor antagonists is used for severe cases.
- Meanwhile, steroid nasal sprays elicit some local side effects such as nasal irritation, dryness, burning sensation of the nose, and nasal bleeding. In addition, when steroids are used for a long time, caution should be taken to avoid steroid withdrawal difficulty, and complications of infection should be a concern. There are a considerable number of cases of rhinitis that show resistance to steroid therapy. Furthermore, steroid nasal sprays do not have a long duration of effectiveness, and in the case of adult patients, application of about 4 times a day is necessary. Accordingly, many patients hesitate to use steroid nasal sprays, and there is a report stating that more than half of the patients did not take drugs in accordance with their prescription.
- Furthermore, while antihistamine drugs suppress allergic reactions and their symptoms, they have disadvantages that they cause dryness in the nasal mucous membrane and drowsiness. In addition, while injection of allergens (hyposensitization therapy) leads to a long-term immunological tolerance against a specific causative substance, it takes from several months to several years for the manifestation of sufficient effects.
- Under such circumstances, development of a novel therapeutic preparation for rhinitis that is not only efficacious and safe for patients with rhinitis, in particular patients with allergic rhinitis, but also has fewer local side effects without complication of infections, has been awaited. Moreover, development of a therapeutic preparation for rhinitis that is also efficacious for patients with severe cases who show treatment resistance to steroids has been awaited.
- There are three known families of natriuretic peptides (NPs), named atrial natriuretic peptide (ANP), B-type natriuretic peptide (BNP), and C-type natriuretic peptide (CNP); their well-known members are composed of 28, 32, and 22 amino acid residues, respectively.
- ANP and BNP are synthesized mainly by the atria and the ventricles, respectively, and released from the heart into the whole body. It is thought that nearly 100% of the circulating ANP and BNP in the blood originate from the heart. These ANP and BNP are reported to be deeply involved in a numerous diseases, including hypertension, cardiomegaly, cardiac failure, myocardial infarction, valvular heart disease, cardiac dysrhythmia, and pulmonary hypertension.
- Human ANP is a peptide produced and released by atrial cardiocytes, and is composed of 28 amino acids, of which the 7th cysteine and the 23rd cysteine are bonded by a disulfide bond to form a ring structure. ANP has been shown to have diuretic effects in the kidneys and relaxes/dilates vascular smooth muscle cells in the blood vessels. In contrast, human BNP is a peptide produced and released by ventricular cells, and is composed of 32 amino acids, of which the 10th cysteine and the 26th cysteine are bonded by a disulfide bond to form a ring structure. BNP also possesses both diuretic and vasodilating effects. BNP was originally isolated and identified in the porcine brain in Japan in 1988, and is also called brain natriuretic peptide.
- Both ANP and BNP bind to the receptor NPR-A (also called GC-A) having a guanylate cyclase domain, and exert their effects as stated above by stimulating the production of cGMP. In fact, secretion of ANP is stimulated in response to an increase in the atrial pressure by its distension in congestive heart failure, etc., and through its action as stated above, ANP relieves the symptoms of congestive heart failure, etc. Likewise, BNP's release is stimulated during certain conditions including myocardial infarction, and BNP, through its action as described above, relieves the symptoms associated with myocardial infarction, etc. (Refer to non-patent literature 1). Although most of the circulating BNP derives from the ventricles, some BNP is released by the atria. In cardiac failure, the level of expression of both ANP and BNP increases to as much as 100 times more the normal level, but the increase of BNP expression is reported to be both greater and faster than that of ANP. While ANP (hANP) is marketed as a prescription drug for treating acute cardiac failure in Japan, BNP is clinically used in the United States.
- CNP, which was once thought to function only as a brain peptide because it was first found in the brain, has now been clarified to exist in the periphery as well. In the vascular walls, in particular, CNP specific receptors were found to be abundant in the smooth muscle cells, and CNP to be produced by the cells of the monocyte/macrophage linage and the endothelial cells. For those reasons, CNP is speculated to function in the vascular walls as a local mediator involved in inhibition of growth of vascular smooth muscle cells. Its clinical application is currently being investigated for possible prevention of restenosis by CNP administration, which occurs with a certain frequency after percutaneous transluminal coronary angioplasty (PTCA) performed on patients with ischemic heart failure.
- Recently it has been reported that intravenous administration of CNP remarkably improves cardiomegaly and fibrosis associated with myocardial infarction, and improves cardiac functions in animal experiments. Cardiac fibrosis is known to cause diastolic ventricular failure and cardiac dysrhythmia. Since CNP possesses a powerful action to suppress fibroblast proliferation, the potential of CNP as an anti-fibrotic medication for the heart is under investigation. Since CNP is a hormone occurring naturally in the body, there is little concern of adverse side effects; accordingly clinical application of CNP as a therapeutic preparation for arteriosclerotic diseases and heart diseases is expected. Here, examples of CNP include CNP-22 composed of 22 amino acids, and CNP-53 wherein 31 amino acid residues are attached to the N-terminal of CNP-22.
- Natriuretic peptide receptors are classified into three subtypes; NPR-A receptor (also called GC-A) and NPR-B receptor (also called GC-B) both of which contain a guanylate cyclase domain, and NPR-C receptor which lacks a guanylate cyclase domain. It is known that ANP can bind to NPR-A and NPR-C receptors, BNP can bind to NPR-A and NPR-C receptors, and CNP can bind to NPR-B and NPR-C receptors.
- The activation of NPR-A receptors is suggested to induce vasodilation, a diuretic effect, and inhibition of cell growth, while NPR-B receptors are abundant in vascular smooth muscle cells and thought to be involved in the growth inhibition of vascular smooth muscle cells.
- Historically, natriuretic peptides were first discovered as a peptide released from the atria, later named ANP, and its vasodilating and diuretic actions gathered attention. BNP and CNP were then discovered as peptides similar to ANP. This historical background offers an explanation as to why any attention to the relationship between natriuretic peptides and the immune system have been focused on those related to the cardiovascular system. CNP knock-out mice demonstrated impaired growth of cartilage resulting in a dwarfism-like phenotype (refer to Non-patent literature 2), which directed some interest to the relationship between arthritis and natriuretic peptides.
- ANP is implicated in playing a role in arthritis and sepsis as it inhibits the release of inflammatory cytokines including tumor necrosis factor (TNF-α) and interleukin 1β (IL-1β) by macrophages (refer to Non-patent literature 3). This literature, however, does not mention ANP's relationship with rhinitis.
- Similarly, the blood concentration of BNP has been reported to increase with the rejection response following heart transplant, and therefore it is suggested that it is associated with immune regulation in the cardiovascular system (refer to Non-patent literature 4). However, this literature does not describe any connection between BNP and rhinitis.
- Taking into account the observation that there is an increase in the blood concentration of BNP during the heart graft rejection, Kuroski de Bold et al. have investigated the immunoregulatory action of natriuretic peptides, and have demonstrated that both ANP and BNP inhibit the lymphocyte growth (refer to Non-patent literature 5). However, there is no connection between natriuretic peptides and rhinitis mentioned in this literature.
- Chiurchiu et al. on the other hand have investigated the immunoregulatory actions of BNP focusing on its association with heart disease and sepsis, and showed that BNP promotes the release by macrophages of pro-inflammatory cytokines such as arachidonic acid, prostaglandin E2 (PGE2), and leukotriene B4 (LTB4), and also promotes the release of anti-inflammatory cytokines including interleukin 10 (IL10). Thus, while BNP is indicated to have some action in the regulation of inflammatory responses, whether BNP acts overall to suppress or promote inflammatory responses remains inconclusive in the literature (refer to Non-patent literature 6). This literature also does not mention any connection between BNP and rhinitis.
- Similarly, CNP is reported to be released by macrophages (refer to Non-patent literature 7), and while investigating the roles of CNP in cardiac ischemia and myocardial damage after reperfusion, Scotland et al. report that CNP suppresses platelet aggregation and lymphocyte migration (refer to Non-patent literature 8). The connection between CNP and rhinitis, however, is not described in these literatures.
- Likewise, Obata et al. examined the roles played by CNP in myocarditis using a rat myocarditis model generated by injecting pig myosin. They reported that continuous administration of CNP for 1 week to the model suppressed necrosis and inflammation of the cardiac tissues, while at the same time promoted the regeneration of blood vessels, thereby preventing functional loss of the heart (refer to Non-patent literature 9). Nevertheless, there is no mention in this literature to suggest a connection between CNP and rhinitis.
- In addition, based on the observation that CNP knock-out mice show a dwarfism-like phenotype, attention has been paid to the potential connection between CNP and cartilage growth. Agoston et al. demonstrated that when incubated with Dexamethasone, the primary-cultured chondrocytes extracted from the tibial bones of mouse embryos had significantly increased the expression of CNP genes (refer to Non-patent literature 10). This literature, however does not describe any connections between CNP and rhinitis.
- It is evident that the connections between natriuretic peptides and the immune system have drawn increasing attention in recently years, but it is limited only to the inflammation of the cardiovascular system and arthritis, and the relationship between rhinitis and natriuretic peptides have never been reported.
- Following are some examples of a number of applications of CNP, BNP and ANP.
- Toshiko Koide and her colleagues have proposed a preparation for repair/regeneration of tissues and organs, comprising a composition that comprises any of ANP, BNP, CNP, urodilatin (P-Uro), precursors thereof, derivatives thereof, or combinations thereof as an active ingredient, and that may comprise pharmaceutically commonly-used diluents, excipients, fillers, and auxiliary agents (refer to Patent Literature 1).
- However, specific examples of repair and regeneration of tissues and organs relate only to the regeneration of myocardiocytes, hypodermal tissue, hair, and improvement of cracked, rough skin due to wet works; they all correspond to ANP administration. There is no statement that implies therapeutic preparations for treating rhinitis by means of administration of CNP or BNP.
- Masaharu Tanaka and his colleagues have proposed a C-type natriuretic peptide exhibiting a growth inhibitory action of vascular smooth muscle cells, as well as a growth inhibitory preparation of vascular smooth muscle cells containing such peptide as its active ingredient (refer to Patent Literature 2).
- This, however, relates to the use of CNP in a growth inhibitory agent of vascular smooth muscle cells but does not imply application of CNP or BNP to therapeutic preparations for rhinitis.
- Katsuhiko Nakada and his colleagues proposed an eye drop for promoting lacrimal secretion or for treating keratoconjunctival disorder, containing as its active ingredient a natriuretic peptide, and they listed ANP, BNP and CNP as examples of usable natriuretic peptides (refer to Patent Literature 3).
- This, however, only relates to the application of the property of ANP, CNP and BNP to promote lacrimal secretion in an eye drop for treating keratoconjunctival disorder, and does not indicate the use of CNP or BNP in a therapeutic preparation to treat rhinitis.
- Kazuwa Nakao and his colleagues proposed a composition for increasing the body height containing a guanyl cyclase B (GC-B) activator as the active ingredient, which is to be administered to an individual without FGFR3 abnormality (refer to Patent Literature 4).
- This indicates an application of CNP in a composition for increasing the body height based on the finding that the nose-anus length in the transgenic mice overexpressing CNP was larger than that in normal litters, but dose not imply the use of CNP or BNP in a therapeutic preparation for rhinitis.
- Kazuwa Nakao and his colleagues also proposed a prophylactic agent or therapeutic preparation for the inflammation of the joints containing a guanyl cyclase B (GC-B) activator such as CNP as an active ingredient (refer to Patent Literature 5).
- However, this relates only to the application of CNP in a therapeutic preparation or prophylactic preparation for inflammation of the joints based on the study revealing that, compared to their litter mates, the articular cartilages grow thicker in the transgenic mice overexpressing CNP, along with the observation that the arthritis is repressed by the continuous administration of CNP to model animals of arthritis. Hence this does not imply the application of CNP or BNP in a therapeutic preparation for rhinitis.
- In addition, Masaharu Tanaka and his colleagues reported that CNP differs from ANP and BNP in the structure, function and effects as stated below (refer to Patent Literature 2).
- “At present, both ANP and BNP are thought to act as a hormone secreted by the heart into the blood, as well as a neurotransmitter, and to play an important role in maintaining the amount of body fluid and homeostasis of blood pressure. There are many unknown points in the physiological role of CNP as a natriuretic peptide. Namely, since CNP has a primary amino acid sequence similar to that of ANP and BNP and shows a natriuretic action and a hypotensive action upon in vitro administration, CNP was relegated to the natriuretic peptide family. However, because the natriuretic action and hypotensive action of CNP are significantly weaker than those of ANP and BNP (from 1/50 to 1/100), . . . CNP has held a unique position in the natriuretic peptide family, and has been presumed to be playing a role different from the maintenance of amounts of body fluid and homeostasis of blood pressure . . . Comparing the structure of CNP with that of ANP/BNP, CNP differs from ANP or BNP in the following points . . . Namely, the primary amino acid sequence of CNP completely differs from that of ANP or BNP at the exocyclic N-terminal domain; of the 17 amino acid residues in the endocyclic domain, 5 residues and 4 residues in CNP differ from those in ANP and BNP, respectively. In addition, the structure of the exocyclic C-terminal domain of CNP largely differs from that of ANP or BNP, and CNP does not have a tail structure existing in ANP or BNP (in the case of ANP and BNP, 5 amino acid residues and 6 amino acid resides, respectively, are attached to the C-terminal of the cyclic structure in ANP and BNP; this structure is called a tail structure for descriptive purposes). Thus-described structural differences between CNP and ANP/BNP are clearly involved in the manifestation of the above-mentioned characteristic pharmacological effects of CNP.”
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- Patent Literature 1: JP A 2008-162987
- Patent Literature 2: JP A 6-9688
- Patent Literature 3: JP A 2000-169387
- Patent Literature 4: WO 2005/094890
- Patent Literature 5: WO 2005/094889
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- Non-patent Literature 1: European J. Endocrinology, Vol. 135, p. 265, 1996.
- Non-patent Literature 2: Proceedings of the National Academy of Sciences of the United States of America, Vol. 98, No. 7, p. 4016, 2001.
- Non-patent Literature 3: Annals of the Rheumatic Disease, Vol. 60, Suppl. 3, iii, p. 68, 2001.
- Non-patent Literature 4: The Journal of Heart and Lung Transplantation, Vol. 27, p. 31, 2008.
- Non-patent Literature 5: The Journal of Heart and Lung Transplantation, Vol. 29, No. 3, p. 323, 2010.
- Non-patent Literature 6: Regulatory Peptides, Vol. 148, p. 26, 2008.
- Non-patent Literature 7: Experimental Hematology, Vol. 29, p. 609, 2001.
- Non-patent Literature 8: Proceedings of the National Academy of Sciences, Vol. 102, No. 40, p. 14452, 2005.
- Non-patent Literature 9: Biochemical and Biophysical Research Communications, Vol. 356, p. 60, 2007.
- Non-patent Literature 10: BMC Musculoskeletal Disorders, Vol. 7, p. 87, 2006.
- Rhinitis, in particular allergic rhinitis, is a recurrent disease therefore its treatment requires continuous use of drugs. However, as mentioned above, while a steroid nasal spray has strong local effects even in small amounts, occasionally it also induces local side effects such as nasal irritation, dryness, nose burning sensation, and nasal bleeding, and it inevitably involves complications of infection and others due to long-term use. Antihistamine drugs suppress allergic reactions and their symptoms, but they have disadvantages such as drying of the nasal mucous membrane and inducing drowsiness.
- Accordingly, the object of the present invention is to provide a novel therapeutic preparation for rhinitis that is not only efficacious and safe for patients with rhinitis, in particular patients with allergic rhinitis, but also has no side effects such as nasal irritation, dryness, nose burning sensation, nasal bleeding, and drowsiness, etc.
- Considering these conditions, as a result of strenuous research efforts, the present inventor have found that C-type natriuretic peptide (CNP) and B-type natriuretic peptide (BNP), conventionally known as a suppressant of vascular smooth muscle cell proliferation, have excellent efficacy and safety as a therapeutic preparation for rhinitis, in particular allergic rhinitis, and also confirmed that they can be applied to patients with a sensitive mucous membrane without causing irritation symptoms; the present invention has thus been accomplished.
- The present invention specifically includes the following.
- [1] A therapeutic preparation for rhinitis comprising C-type natriuretic peptide (CNP) or B-type natriuretic peptide (BNP) as the active ingredient.
[2] The therapeutic preparation for rhinitis according to [1], wherein the C-type natriuretic peptide (CNP) is CNP-22, CNP-53, or a CNP derivative in which any amino acid in the amino acid sequence of CNP-22 or CNP-53 is deleted, substituted or added, and which has CNP activity.
[3] The therapeutic preparation for rhinitis according to [1], wherein the C-type natriuretic peptide (CNP) is CNP-22.
[4] The therapeutic preparation for rhinitis according to [1], wherein the B-type natriuretic peptide (BNP) is BNP-26, BNP-32, BNP-45, or a BNP derivative in which any amino acid in the amino acid sequence of BNP-26, BNP-32, or BNP-45 is deleted, substituted or added, and which has BNP activity.
[5] The therapeutic preparation for rhinitis according to [1], wherein the B-type natriuretic peptide (BNP) is BNP-32.
[6] The therapeutic preparation for rhinitis according to [1], wherein the C-type natriuretic peptide (CNP) or B-type natriuretic peptide (BNP) is a chimeric peptide of CNP and BNP forming a ring structure by an intermolecular disulfide bond,
in which the CNP is a peptide selected from the group consisting of CNP-22, CNP-53, a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of CNP-22 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s), or a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of CNP-53 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s),
and in which the BNP is a peptide selected from the group consisting of BNP-26, BNP-32, BNP-45, a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of BNP-26 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s), a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of BNP-32 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s), or a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of BNP-45 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s), and wherein the chimeric peptide has CNP activity or BNP activity; or a derivative of the chimeric peptide.
[7] The therapeutic preparation for rhinitis according to [1], wherein the concentration of the C-type natriuretic peptide (CNP) or the B-type natriuretic peptide (BNP) is 20-200 μg/g.
[8] The therapeutic preparation for rhinitis according to [1], wherein the concentration of the C-type natriuretic peptide (CNP) or the B-type natriuretic peptide (BNP) is 50-200 μg/g.
[9] The therapeutic preparation for rhinitis according to [1], wherein the concentration of the C-type natriuretic peptide (CNP) or the B-type natriuretic peptide (BNP) is 50-100 μg/g.
[10] The therapeutic preparation for rhinitis according to [1], wherein the rhinitis is infectious rhinitis, hypersensitive non-infectious rhinitis, irritant rhinitis, atrophic rhinitis, or specific granulomatous rhinitis.
[11] The therapeutic preparation for rhinitis according to [10], wherein the infectious rhinitis is acute rhinitis or chronic rhinitis.
[12] The therapeutic preparation for rhinitis according to [10], wherein the hypersensitive non-infectious rhinitis is combined-type rhinitis (hypersensitive nose), rhinorrhea-type rhinitis, congestive-type rhinitis, or dry-type rhinitis.
[13] The therapeutic preparation for rhinitis according to [12], wherein the combined-type rhinitis (hypersensitive nose) is allergic rhinitis.
[14] The therapeutic preparation for rhinitis according to [1], wherein the allergic rhinitis is allergic rhinitis against at least one allergen selected from the group consisting of house dust, mite, cedar, orchard grass, ragweed, and cat hair.
[15] The therapeutic preparation for rhinitis according to [10], wherein the irritant rhinitis is physical irritant-induced rhinitis, chemical irritant-induced rhinitis or radiation-induced rhinitis.
[16] The therapeutic preparation for rhinitis according to [1], wherein the rhinitis is atrophic rhinitis or specific granulomatous rhinitis.
[17] The therapeutic preparation for rhinitis according to [1], wherein the rhinitis is mixed-type rhinitis, sneezing/rhinorrhea-type rhinitis, or nasal-occlusion-type rhinitis.
[18] The therapeutic preparation for rhinitis according to [1], wherein the dosage form is a nasal drop preparation selected from an ointment preparation, a gel preparation, a cream preparation, a lotion preparation, a liquid preparation, a powder preparation or a spray preparation.
[19] The therapeutic preparation for rhinitis according to [1], wherein the dosage form is a nasal drop preparation selected from a gel preparation, a liquid preparation or a spray preparation.
[20] The therapeutic preparation for rhinitis according to [1], wherein the rhinitis is rhinitis in a subject suffering from atopic dermatitis.
[21] The therapeutic preparation for rhinitis according to [1], wherein the rhinitis is rhinitis with treatment resistance to steroids.
[22] The therapeutic preparation for rhinitis according to [1], wherein the rhinitis is rhinitis in a subject having difficulty withdrawal from steroids.
[23] The therapeutic preparation for rhinitis according to [1], wherein the rhinitis is rhinitis with treatment resistance to antihistamine drugs. - The therapeutic preparation for rhinitis of the present invention has, as is clear from the case studies mentioned below, not only excellent actions to improve rhinorrhea and nasal occlusion and to eliminate sneezing and nasal itching, but also superior permeability (absorbability) to the nasal mucous membrane and persistence. It is fast-acting and causes no irritation to patients with sensitive nasal mucous membranes, no local side effects as well as no systemic side effects such as induction of drowsiness.
- The therapeutic preparation for rhinitis of the present invention has CNP or BNP as the active ingredient, and its effects are more remarkable compared to conventional steroids and antihistamine drugs. In terms of persistence of the effects, it is a revolutionary preparation that can relieve symptoms by once-a-day administration.
- Thus, without administration of steroids or antihistamine drugs, severe symptoms of rhinitis can be markedly improved by the use of the therapeutic preparation for rhinitis of the present invention once a day, and even after discontinuation or stoppage of the use, worsening of symptoms need not be a concern.
- Moreover, since the therapeutic preparation for rhinitis of the present invention has long-lasting drug efficacy, while at first, use twice a day in the morning and before bedtime is recommended, in many cases application once a day from
day 2 and thereafter can significantly improve symptoms such as sneezing, rhinorrhea, and nasal occlusion. - Regarding the absorbability and fast-acting property, the effects are manifested 10 to 20 min after the inhalation, and the preparation of the present invention is effective for any of mixed-type rhinitis, nasal-occlusion-type rhinitis, and sneezing/rhinorrhea-type rhinitis. Therapeutic effects in actual case studies (16 cases) showed that the preparation of the present invention was effective in 100% of the cases.
- Given that both BNP and ANP belong to the same family and share the common receptors, it was formerly assumed that BNP and ANP preparations possess equivalent effects. When they were actually tested on patients with rhinitis, allergic rhinitis in particular, however, BNP preparations were revealed to have much greater pharmacological effects than ANP preparations. That is to say that BNP preparations are faster-acting than ANP preparations, and lead to better improvements of the clinical symptoms and the effects lasted longer. On the other hand, ANP preparations unexpectedly resulted in much poorer improvements in the rhinitis symptoms including runny nose, rhinorrhea and nasal occlusion, and in many cases, the symptoms showed no improvements or worsening. In cases where little improvement was evident with ANP preparations, the improvement in the rhinitis symptoms was insufficient and only temporary. The finding that BNP as a therapeutic preparation for rhinitis had more intense pharmacological effects than ANP belonging to the same family of natriuretic peptide was surprising.
- The active ingredients of the present invention, CNP and BNP, are hormones which naturally occur in the body. Thus side effects are less expected and with adequate dosage, it is thought to have only a minor effect on the hemodynamic status and hence it is safe to apply to patients with low or unstable blood pressure, allowing long-term administration to chronic rhinitis patients. It shows a potency to rhinitis greater than that of conventional steroids and antihistamine drugs and it is also more rapid-acting, with an enhanced efficacy and leads to longer-lasting effects; in many cases, application of once a day from
day 2 and thereafter can significantly improve symptoms such as sneezing, rhinorrhea, and nasal occlusion. By the use of CNP preparations or BNP preparations, in most cases, a mild to below mild and stable condition can be maintained without combined internal use of antihistamine agents, and it is also advantageous that there are no local irritation symptoms that are observed with steroid sprays. In addition, the therapeutic preparation for rhinitis of the present invention has a merit of being efficacious to patients who are resistant to steroid therapy or patients of severe cases, which makes the present invention an unprecedented, important therapeutic preparation. - Thus, the therapeutic preparation for rhinitis of the present invention is extremely effective in the treatment of various types of rhinitis, in particular allergic rhinitis, and side effects need not be a concern; the present preparation can be applied to patients in whom conventional steroid nasal sprays and antihistamine drugs are not effective, or patients in whom these drugs cannot be applied due to the possibility of side effects, as well as young patients.
- Therefore, practical application of the therapeutic preparation for rhinitis of the present invention as a therapeutic preparation for rhinitis replacing steroids and antihistamine drugs can be greatly expected.
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FIG. 1 is a diagram showing a comparison of the amino acid sequences of human CNP peptide, human BNP peptide, and human ANP peptide. Each letter of the alphabet represents a type of amino acid expressed by one letter. There are three common regions in the amino acid sequence among the human CNP peptide, human BNP peptide and human ANP peptide, i.e., amino acid sequences represented by “CFG”, “DRI” and “SGLGC”; each peptide has four mutually different sequences divided by these three common sequences. -
FIG. 2 is a graph showing the therapeutic effects on rhinitis before and after spraying CNP nasal drop preparations. Each point represents each case. In all of nine (9) severe cases and one (1) moderate case, symptoms were improved to a mild degree by the 100 μg/ml CNP nasal drop preparation. -
FIG. 3 is a graph showing the therapeutic effects on rhinitis before and after spraying BNP nasal drop preparations. Each point represents each case. In two (2) most severe cases and one (1) moderate case, symptoms were improved to a mild degree by spraying the 50 μg/ml BNP nasal drop preparation. In addition, in one most severe case, symptoms were improved to a moderate degree by spraying the 50 μg/ml BNP nasal drop preparation. Similarly, in one (1) most severe case, symptoms were improved to a mild degree by spraying the 100 μg/ml BNP nasal drop preparation. Similarly, in one (1) severe case, symptoms were improved to a mild degree by spraying the 200 μg/ml BNP nasal drop preparation. - The present invention relates to a therapeutic preparation for rhinitis comprising C-type natriuretic peptide (CNP) or B-type natriuretic peptide (BNP) as the active ingredient.
- The CNP referred to herein means: CNP-22 composed of 22 amino acids, and CNP-53 in which 31 amino acid residues are attached to the N-terminal of the CNP-22, or derivatives thereof, without any particular limitations provided that they possess CNP activity. These CNP-22, CNP-53, and their derivatives are all heretofore known, and can be made by chemical synthesis or genetic manipulations.
- There are no particular limitations to the origin of CNP-22 and CNP-53, on the condition that they possess CNP activity, but the CNP derived from mammals including human or birds are preferred, and more preferably, the CNP derived from humans, monkeys, mice, rats or pigs, and particularly preferably, the CNP derived from humans.
- The CNP derivatives means those having, in the amino acid sequences of the CNP-22 or CNP-53, a deletion(s), substitution(s) or addition(s) of 1-5 amino acid(s), more preferably 1-3 amino acid(s), and furthermore preferably 1 or 2 amino acid(s), while possessing CNP activity, or alternatively, those having a sequence with a homology of 85% or more, preferably 90% or more, and more preferably 95% or more with the amino acid sequence of the CNP-22 or CNP-53, while possessing CNP activity.
- Replaceable amino acids are substituted ideally by conservative amino acid substitution. Conservative amino acids are classified by polarities and charge types. For example, nonpolar uncharged amino acids include glycine, alanine, valine, leucine, isoleucine, proline, etc.; aromatic amino acids include phenylalanine, tyrosine, tryptophan; polar uncharged amino acids include serine, threonine, cysteine, methionine, asparagine, glutamine, etc.; negatively-charged amino acids include asparaginic acid, glutamic acid; positively-charged amino acids include lysine, arginine, histidine. Thus, preferably amino-acid substitution is carried out between conservative amino acids belonging to the same group. Here, when proline is to be replaced by another nonpolar uncharged amino acid, or when proline is to replace other nonpolar uncharged amino acids, it should be noted that proline is not flexible in its spatial orientation. Similarly, when cysteine is to be replaced by another polar uncharged amino acid, or when cysteine is to replace other polar uncharged amino acids, it should be noted that cysteine may form a disulfide bond with another cysteine.
- CNP derivatives may include those amidated or methoxylated at the C terminal, CNP modified with addition of polyethylene glycol or fatty acids, and, glycosylated or alkylated CNP, provided they have CNP activity.
- Thus, any heretofore known CNPs with CNP activity can be used in the present invention. Examples may include CNP derivatives disclosed in JP A 6-9688, CNP derivatives disclosed in U.S. Pat. No. 5,583,108, and CD-NP disclosed in U.S. Pat. No. 6,818,619. It is possible to test the presence/absence of CNP activity easily using heretofore known procedures, such as by testing a growth inhibitory action on the vascular smooth muscle cells, or by examining the activity of cGMP production in the cells expressing NPR-B receptors.
- While any of CNP-22, CNP-53 and their derivatives can be used as the active ingredient of the present invention, CNP-22 with a lower molecular weight is more preferable in terms of absorbability. CNP-22 can be manufactured by chemical synthesis or genetic manipulation using human CNP genes, and is also available at, for example, Peptide Institute Inc. as CNP-22 (human).
- CNP that can be used in the present invention includes: purified naturally occurring CNP, genetically engineered CNP made using known genetic engineering procedures, CNP made using known chemical synthetic procedures (such as solid-phase peptide synthesis by peptide synthetic machinery). Basic methods including genetic engineering techniques, site-specific mutagenesis, and PCR, are commonly known or heretofore known, and are described in, for example, Current Protocols In Molecular Biology; John Wiley & Sons (1998), and JP A 5-207891.
- The BNP of the present invention refers to: BNP-26 containing 26 amino acids, BNP-32 containing 32 amino acids, BNP-45 containing 45 amino acids, or their derivatives without any particular limitations provided they possess BNP activity. BNP can also be high molecular weight γ-BNP (molecular weight of approximately 13000) which is formed by the removal of the signal peptide from a BNP precursor. BNP-32 and their derivatives are preferred. BNP-26, BNP-32, BNP-45, and their derivatives are heretofore known, and can be manufactured by chemical synthesis or genetic manipulation.
- There are no particular limitations to the origin of the BNP-26, BNP-32 and BNP-45, provided they possess BNP activity, but the CNP derived from mammals including humans or birds is preferred, and the CNP derived from humans, monkeys, mice, rats or pigs is more preferred, and the CNP derived from humans is particularly preferred.
- The BNP derivatives means, those having, in the amino acid sequences of BNP-26, BNP-32 or BNP-45, a deletion(s), addition(s) or substitution(s) of 1-5 amino acid(s), more preferably 1-3 amino acid(s), and furthermore preferably 1 or 2 amino acid(s), while possessing BNP activity, or alternatively, those having a sequence with a homology of 85% or more, preferably 90% or more, and more preferably 95% or more with the amino acid sequence of BNP-26, BNP-32 or BNP-45, while possessing BNP activity.
- Replaceable amino acids in the BNP derivatives are similar to the replaceable amino acids in the CNP derivatives.
- BNP derivatives may include those amidated or methoxylated at the C terminal of BNP, BNP modified with addition of polyethylene glycol or fatty acids, and, glycosylated or alkylated BNP, provided they have BNP activity.
- Thus, any heretofore known BNP with BNP activity can be used in the present invention. Examples may include BNP derivatives disclosed in JP A 2007-525213, BNP derivatives disclosed in U.S. Pat. No. 6,028,055, BNP derivatives disclosed in U.S. Pat. No. 5,114,923, and BD-NP disclosed in U.S. Pat. No. 6,818,619, or diuretic polypeptide or natriuretic polypeptide disclosed in JP A 2010-500032.
- It is possible to easily test the presence/absence of BNP activity using heretofore known procedures, such as an examination of the activity of cGMP production in the cells expressing NPR-A receptors.
- While any of BNP-26, BNP-32, BNP-45 and their derivatives can be used as the active ingredient of the present invention, BNP-32 is preferable in terms of drug efficacy and availability.
- BNP of the present invention can be manufactured by chemical synthesis or genetic manipulation using human BNP genes (for example, refer to JP A5-207891, JP A2007-525957, JP A2007-525213), and BNP is also commercially available since it has already been launched. Alternatively, it is available from, for example, Peptide Institute Inc. as BNP-32 (human).
- BNP that can be used in the present invention includes: purified naturally occurring BNP, genetically engineered BNP made using known genetic engineering procedures, BNP made using known chemical synthetic procedures (such as solid-phase peptide synthesis by a peptide synthesizer). Basic methods including genetic engineering techniques, site-specific mutagenesis, and PCR, are commonly known or heretofore known, and are described in, for example, Current Protocols in Molecular Biology; John Wiley & Sons (1998), and JP A 5-207891.
- When the term “CNP or BNP” is used herein, it refers to either CNP or BNP, as well as the chimeric peptides of CNP and BNP. That is, as used herein, the term “CNP or BNP” refers to CNP or BNP which may be: a chimeric peptide of CNP and BNP forming a ring structure by an intermolecular disulfide bond,
- in which the CNP is a peptide selected from the group consisting of CNP-22, CNP-53, a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of CNP-22 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s), or a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of CNP-53 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s),
and in which the BNP is a peptide selected from the group consisting of BNP-26, BNP-32, BNP-45, a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of BNP-26 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s), a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of BNP-32 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s), or a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of BNP-45 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s), and wherein the chimeric peptide has CNP activity or BNP activity; or a derivative of the chimeric peptide. - Here, there are no particular limitations to the origin of CNP-22 and CNP-53, provided that they possess CNP activity, but the CNP derived from mammals including humans or birds are preferred, and more preferably, CNP derived from humans, monkeys, mice, rats or pigs, and most preferably, CNP derived from humans. Similarly, there are no particular limitations to the origin of BNP-26, BNP-32 and BNP-45, provided that they possess BNP activity, but the BNP derived from mammals including humans or birds is preferred, and the BNP derived from humans, monkeys, mice, rats or pigs is more preferred, and the BNP derived from humans is particularly preferred.
- The derivatives of chimeric peptide of CNP and BNP mean those which have, in the amino acid sequences of the chimeric peptide of CNP and BNP, deletion(s), addition(s) or substitution(s) of preferably 1-5 amino acid(s), more preferably 1-3 amino acid(s), and furthermore preferably 1 or 2 amino acid(s), while possessing CNP or BNP activity.
- Replaceable amino acids in the derivatives of the chimeric peptide of CNP and BNP are similar to the replaceable amino acids in the CNP derivatives.
- The derivatives of chimeric peptide of CNP and BNP may include those amidated or methoxylated at a C terminal of the chimeric peptide of CNP and BNP, those modified with the addition of polyethylene glycol or fatty acids in the chimeric peptide of CNP and BNP, and, glycosylated or alkylated chimeric peptide of CNP and BNP, provided that they have CNP or BNP activity.
- Furthermore, the amino acid sequence of human CNP peptide represented by SEQ ID NO: 1 and the amino acid sequence of human BNP peptide represented by SEQ ID NO: 2 have, as shown in
FIG. 1 , four mutually different sequences divided by three common sequences represented by the amino acid sequences of “CFG”, “DRI” and “SGLGC”. Accordingly, as a chimeric peptide of CNP and BNP, at least 14 kinds of chimeric peptide represented by SEQ ID NOs 3-16 are listed based on the combination of these four mutually different sequences. Then, these chimeric peptides and their derivatives are considered to have characteristics common to CNP and BNP. Namely, these chimeric peptides and their derivatives can be used as the active ingredient of the therapeutic preparation for rhinitis of the present invention. - Thus, it is possible to use any heretofore known chimeric peptides of CNP and BNP or derivatives thereof in the present invention, provided that they possess CNP or BNP activity. For example, aquaretic polypeptides and natriuretic polypeptides disclosed as ABC-NP, ABC-NP1, BC-NP, etc. in JP A 2010-502231 may be used. These polypeptides are exemplified as amino acid sequence of SEQ ID Nos. 17-20.
- The presence/absence of CNP or BNP activity can be easily tested using heretofore known procedures, such as an examination of the activity of cGMP production in the cells expressing NPR-A receptors or in the cells expressing NPR-B.
- The chimeric peptides of CNP and BNP and their derivatives of the present invention can also be manufactured by chemical synthesis or by genetic manipulation.
- Indications of treatment by the therapeutic preparation for rhinitis of the present invention are not particularly limited, as long as the disease is a so-called rhinitis, which induces an inflammation of the nasal mucous membrane and shows symptoms such as sneezing, runny nose and stuffy nose. The therapeutic preparation for rhinitis of the present invention may be applied to various types of rhinitis.
- More specifically, rhinitides to which the therapeutic preparation for rhinitis of the present invention can be applied include infectious rhinitis, hypersensitive non-infectious rhinitis, irritant rhinitis, atrophic rhinitis or specific granulomatous rhinitis; preferably it is infectious rhinitis and hypersensitive non-infectious rhinitis in terms of therapeutic effects, and particularly preferably it is hypersensitive non-infectious rhinitis.
- Infectious rhinitis may be acute rhinitis or chronic rhinitis, and preferably acute rhinitis. Using the therapeutic preparation for rhinitis of the invention, sneezing, excess rhinorrhea (nasal drip), nasal occlusion (stuffy nose), and impairment of the sense of smell, etc. can be rapidly cured.
- Hypersensitive non-infectious rhinitis may be combined-type rhinitis (hypersensitive nose) including allergic rhinitis and non-allergic rhinitis; rhinorrhea-type rhinitis selected from gustatory rhinitis, cold air inhalation-induced rhinitis, and senile rhinitis; congestive-type rhinitis selected from drug-induced rhinitis, psychogenic rhinitis, pregnancy rhinitis, endocrine rhinitis and cold-induced rhinitis; or dry-type rhinitis.
- Particularly preferred is allergic rhinitis or non-allergic rhinitis, and allergic rhinitis may include both perennial allergic rhinitis and seasonal allergic rhinitis. The therapeutic preparation for rhinitis of the invention exhibits extremely high efficacy and safety for allergic rhinitis, in particular perennial allergic rhinitis caused by house dust or mites, of which complete cure or long-term remission is considered to be difficult, as its effective therapeutic preparation.
- In addition, the present preparation is efficacious as a therapeutic preparation for various types of rhinitis with symptoms such as sneezing, runny nose and stuffy nose, derived from irritant rhinitis such as physical irritant-induced rhinitis, chemical irritant-induced rhinitis and radiation-induced rhinitis, as well as atrophic rhinitis and specific granulomatous rhinitis.
- Furthermore, when indication of treatment by the present therapeutic preparation for rhinitis is classified based on the symptoms, the preparation can be effectively used for mixed-type rhinitis, nasal-occlusion-type rhinitis, or sneezing/rhinorrhea-type rhinitis in accordance with “Guidelines for medical care of nasal allergies, 2009 edition” (edited by the committee for creation of guidelines for medical care of nasal allergies).
- Meanwhile, the meaning of the terms and the characteristics of the symptoms of these various types of rhinitis are as descried above in the Background Art.
- The therapeutic preparation for rhinitis of the present invention is those comprising C-type natriuretic peptide (CNP) or B-type natriuretic peptide (BNP) as the active ingredient, and its administration route and dosage form are not particularly limited.
- Regarding the administration route, injections, oral medicines or external preparations can be used depending on the patient and symptoms. Specific examples include nasal drop preparations, gel preparations, ointment preparations, cream preparations, lotion preparations, spray preparations, liquid preparations, nasal spray preparations, patch preparations, aerosol preparations, jelly preparations, cataplasms, patch preparations, plaster preparations, suspension preparations, emulsion preparations, injection preparations, tablets, pills, capsules, granules, powders, etc.; liquid preparations may be adopted by selecting appropriate solvents. Any preparation can be produced in accordance with well-known or heretofore known methods. Preferable examples include nasal drop preparations, liquid preparations, gel preparations, spray preparations, ointment preparations, cream preparations, lotion preparations, or powder preparations; more preferable examples are nasal drop preparations, liquid preparations, gel preparations, powder preparations, aerosol preparations or spray preparations, and a particularly preferable example is liquid preparations.
- Nasal drop preparations of the present invention may be a liquid preparation or dry products such as a powder, and may comprise carriers or excipients, surfactants, suspending agents, mucosa-adherent bases and tonicity agents. Preferable examples of tonicity agents include sodium chloride, glycerin, sodium bisulfite, benzalkonium chloride, fluctose, citric acid, sodium citrate, sodium dihydrogen phosphate (crystal), sodium hydroxide, D-sorbitol solution, nicotinic-acid amide, concentrated glycerin, propylene glycol, benzyl alcohol, boric acid, borax, macrogol 4000, sodium hydrogen phosphate, potassium dihydrogen phosphate, and sodium dihydrogen phosphate. Examples of suspending agents include crystalline cellulose-sodium carmellose and hydroxypropyl cellulose.
- A gel preparation (suspension base) may be a hydrous gel, an anhydrous gel, or a gel with a low water content comprising a gel-forming material that can swell. It may also be a hydrogel base or a lyogel base, and preferably a transparent hydrogel having an inorganic or organic polymer as a base. Similar to preparations comprising an oil or fat content, the gel itself is not absorbed by the nasal mucous membrane. Hydrogel bases have no fat and a consistency similar to that of ointment preparation, and aim at increasing the percutaneous absorbability of drugs. Lyogel bases are gelled by suspending stearyl alcohol, etc. in propylene glycol, and they have excellent absorbability by the nasal mucous membrane and hygroscopicity.
- The gel preparation of the present invention may be a gel preparation made by homogenously dispersing CNP or BNP as an active ingredient into a hydrophilic gel base comprising carboxy vinyl polymer, sodiumpolyacrylate, sodiumpolyacrylate, (vinyl methyl ether/ethyl maleate) copolymer, polymethacrylate, propylene glycol, etc.
- A liquid preparation means those wherein an active ingredient consisting of CNP or BNP is dissolved in a base such as alcohol, propylene glycol, polyethylene glycol or water. Preferably, it means a liquid preparation consisting of an aqueous solution wherein either CNP or BNP is dissolved in saline. In the aqueous solution preparations, a small amount of an organic base such as alcohol, propylene glycol, polyethylene glycol, etc. may be mixed, in addition to the saline.
- An ointment preparation may comprise either a grease base or a water-soluble base, and both can be easily obtained in accordance with heretofore known methods. A grease base such as vaseline causes little irritation and is odorless, which is superior in protective action of the nasal mucous membrane. Water-soluble bases produce ointment preparations having a macrogol base as the main ingredient, and they have a strong action to absorb and remove aqueous discharges.
- A cream preparation (emulsion base) may be an oil-in-water base (O/W) (vanishing cream) or a water-in-oil base (cold cream). An oil-in-water base has a smaller amount of oil-soluble component than water-soluble component, so that it has an advantage that the white color of the cream appears to disappear upon application. In addition, since it is easily absorbed by the nasal mucous membrane, it can be very applicable to chronic hypertrophic lesions.
- A lotion preparation means a liquid external preparation wherein CNP or BNP is dissolved or homogeneously dispersed in a liquid. Since lotion preparations are in a liquid state, they are suitable for use in the mucous membrane of the nasal cavities. The form of the lotion preparations may be a suspended lotion base and an emulsion lotion.
- A spray preparation refers to those wherein CNP or BNP is made into a solution, which is then sprayed by gas pressure. Sprays are convenient for application to a wide area.
- As a liquid preparation, for example an aqueous solution wherein an appropriate amount of CNP or BNP is blended, saline can be used. Alternatively, an aqueous solution wherein CNP or BNP is dissolved in a buffer that can retain CNP or BNP in a stable manner can be used.
- As a powder preparation, CNP or BNP can be administered in a pure dosage form or a dosage form wherein CNP or BNP is diluted with an inactive carrier. As inactive carrier, calcium carbonate or lactose can be used. At the same time, povidone and lactose can be added as a hydrophilic aid. Since the nose has a potent discharge mechanism, administration in the form of dry powder is advantageous over liquid forms, because the duration of action is prolonged. Powders can be prepared by making fine powders through recrystallization, granulation, drying, or pulverization to a specific grain size.
- Aerosol preparations are prepared as follows: CNP or BNP is pulverized to a size of preferably 5 μm or smaller, a dispersing agent is added if necessary, which is then filled in a spraying device together with a propellant while cooling. Examples of preferable dispersing agents include nonionic surfactants commercially available under the brand name of Span 80 and Span 85, amphoteric surfactants such as soybean lecithin, and natural alcohols such as oleyl alcohol. Preferable propellants include fluorinated/chlorinated lower alkanes such as chlorofluorocarbon (CFC) 11, CFC 12, CFC 114 as well as mixtures thereof.
- Thus, upon production of the therapeutic preparations for rhinitis of the present invention, various types of bases, moisturizing agents, ultraviolet absorbers, alcohols, chelates, pH adjusters, preservatives, thickening agents, coloring agents, flavors, filling agents, excipients, disintegrating agents, extenders, binding agents, film forming agents, solubilizers, suspending agents, buffers, stabilizing agents, preserving agents, surfactants, antioxidative agents, dispersing agents, emulsifying agents, dissolving agents, solubilizing agents, etc. may be blended in combination. Furthermore, in addition to the principal agent CNP or BNP, various drugs such as antiphlogistic analgesics, sterilizing agents and vitamins may be appropriately blended when necessary.
- Examples of excipients include lactose, corn starch, calcium phosphate, etc. Examples of binding agents include crystalline cellulose, mannitol, hydroxypropyl cellulose, hydroxypropyl methylcellulose, macrogol, etc.
- Preferable liquid preparations are CNP or BNP aqueous solution preparations comprised of an appropriate amount of CNP or BNP dissolved in saline. It is possible to use a liquid preparation by filling a spraying device with it. These solution preparations may be blended with general additives, for example, sedimentation-preventing agents such as sorbitol, syrup, methylcellulose, gelatin, hydroxyl ethylcellose, carboxy methylcellulose, aluminum stearate gel or hydrogenated food fat; emulsifying agents such as lecithin, sorbitan monooleate, and gum arabic; oily esters such as almond oil, purified coconut oil, and glycerin esters; nonaqueous media (which may include food oils) such as propylene glycol and ethyl alcohol; preservatives such as p-hydroxylbenzoic acid methyl ester, ethyl ester or propyl ester, or sorbic acid; and if necessary, general flavoring agents or coloring agents.
- Here, when oral preparations of the present therapeutic preparation for rhinitis are to be produced, it is preferable to make enteric-coated drugs by coating the surface of the tablets or granules with an enteric coat, or by using enteric-coated capsules, in order to suppress disintegration of the peptide CNP or BNP by gastric acid.
- Moreover, solutions may be made into, in addition to the above-mentioned aqueous solutions, aqueous or oily suspension preparations or emulsion preparations. Alternatively, they can be provided as dry pharmaceutical compositions, which can be re-dissolved into water or an appropriate medium prior to their use.
- Thus, the therapeutic preparation for rhinitis of the present invention is a preparation made by blending an appropriate amount of CNP or BNP with various bases, as well as additives if necessary. Dosage form and base of the therapeutic preparation for rhinitis of the present invention can be appropriately selected depending on the symptoms and patient.
- Next, production of aqueous-solution preparations as liquid preparations, and of gel preparations is described as representative examples of the present therapeutic preparations for rhinitis.
- In the present invention, one preferred nasal drop preparation is an aqueous solution preparation. Such an aqueous solution preparation can be prepared as follows: for example, 0.1-1 mg of human CNP-22 (Peptide Institute, Inc.) as the principal agent is dissolved in 10 ml of saline to prepare the aqueous solution preparation with a CNP concentration of 10-100 μg/ml. Here, since the specific gravity of water is 1, the CNP concentration in this case is 10-100 μg/g by weight. The effect is insufficient when the CNP concentration is 20 μg/ml or less, but it is sufficient when the CNP concentration is 100 μg/ml; accordingly, it is not necessary to use a concentration exceeding 200 μg/ml. Preferable CNP concentration in aqueous solutions is 10-500 μg/g, more preferably 20-200 μg/g, furthermore preferably 50-200 μg/ml, and particularly preferably 50-100 μg/ml.
- BNP aqueous solutions can be produced similarly to the CNP aqueous solution preparations, and preferable concentrations are the same as those of CNP aqueous solutions.
- Gel preparations can be obtained by, in accordance with heretofore known or well-known methods, dissolving an appropriate amount of CNP into distilled water or saline to make an aqueous solution, and by mixing and stirring a heretofore known or well-known or commercially-available gelling agent with the solution. Preferable CNP concentrations in the gel preparations are 10-500 μg/g, more preferably 20-200 μg/g, furthermore preferably 50-200 μg/g, particularly preferably 10-100 μg/g, and even furthermore preferably 50-100 μg/g, and most preferably 30-100 μg/g.
- Examples of the gelling agents consisting of macromolecular inorganic components include hydrous or water-absorbing silicates, such as aluminum silicate, for example bentonite, magnesium-aluminum silicate, and colloidal silica. As the gelling agent consisting of macromolecular organic substances, natural, semi-synthetic, or synthetic polymers may be used. Examples of natural and semi-synthetic polymers include, polysaccharides such as cellulose, starch, tragacanth, gum arabic, xanthan gum, agar-agar, gelatin, alginic acid and its salts, for example sodium alginate and its derivatives, lower alkyl cellulose, for example methyl cellulose or ethyl cellulose, carboxy- or hydroxyl-lower-alkyl cellulose, for example carboxymethyl cellulose, or hydroxypropyl cellulose, etc.
- Examples of synthetic gelling agents include polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylic acid or polymethacrylic acid, etc. Only one kind of these gelling agents, or a mixture of two or more kinds of these may be used.
- If necessary, a percutaneous absorption aid may be added. Examples of the percutaneous absorption aid include, for example, limonene, menthol, salicylic acid, hyaluronic acid, oleic acid, N,N-diethyl-m-toluamide, n-butyl stearate, benzyl alcohol, isopropylmyristate, isopropyl palmitate, polypropylene glycol, crotamiton, diethyl sebacate, N-methylpyrrolidone, N-ethyl pyrrolidone, lauryl alcohol, etc. In addition, an antiseptic agent and an antioxidant may be added if necessary.
- The concentration of CNP or BNP in the therapeutic preparation for rhinitis may be appropriately selected with consideration given to symptoms, age, and dosage form, etc. Preferable concentrations of CNP or BNP are, for nasal drop preparations such as solutions, gel preparations, lotion preparations, and aerosols, etc., 10-500 μg/g, and more preferably 20-200 μg/g. For younger patients and patients with sensitive skin, those with a concentration of 20-100 μg/g are preferably used. Preferable CNP or BNP concentrations in the gel preparations are 10-100 μg/g, and particularly preferably 30-100 μg/g. Preferable CNP or BNP concentrations in the solutions are 20-200 μg/ml, and particularly preferably 50-200 μg/ml.
- The number of applications and the duration of application of the present therapeutic preparation for rhinitis differ depending on symptoms, age and dosage form, etc.; normally, once or twice a day for 2 to 7 days of application is sufficient.
- Hereinafter, the present invention is explained with reference to examples. However, the present invention is not limited to these examples.
- A 1000 μg/ml CNP liquid preparation was prepared by dissolving 3 mg of human CNP-22 (Peptide Institute, Inc.) as the principal agent in 3 ml of saline. 100 μl of the obtained 1000 μg/ml CNP solution preparation was diluted with 900 μl of saline to prepare the CNP nasal solution preparation with a CNP concentration of 100 μg/ml. Similarly, the CNP nasal solution preparation with a CNP concentration of 50 μg/ml was prepared by diluting 50 μl of the 1000 μg/ml CNP solution preparation with 950 μl of saline. Furthermore, similarly, the CNP nasal solution preparation with a CNP concentration of 200 μg/ml was prepared by diluting 200 μl of the 1000 μg/ml CNP solution preparation with 800 μl of saline.
- Three kinds of CNP nasal solution preparations with concentrations of 100 μg/ml, 50 μg/ml, and 200 μg/ml obtained as above were used to fill a metered-dose nasal spraying device (Astellas Pharma, Inc.; a metered-dose nasal spraying device for Intal nasal solution was used), and the device was adjusted so that the amount of a solution delivered by one spray is 130 μl. Accordingly, the amount of CNP contained in one spray of solution of the CNP nasal solutions with 100 μg/ml, 50 μg/ml, and 200 μg/ml are 13 μg, 6.5 μg, and 26 μg, respectively.
- A 1000 μg/ml BNP solution preparation was prepared by dissolving 3 mg of human BNP-32 (Peptide Institute, Inc.) as the principal agent in 3 ml of saline. 100 μl of the obtained 1000 μg/ml BNP solution preparation was diluted with 900 μl of saline to prepare the BNP nasal solution preparation with a BNP concentration of 100 μg/ml. Similarly, the BNP nasal solution preparation with a BNP concentration of 50 μg/ml was prepared by diluting 50 μl of the 1000 μg/ml BNP solution preparation with 950 μl of saline. Furthermore, similarly, the BNP nasal solution preparation with a BNP concentration of 200 μg/ml was prepared by diluting 200 μl of the 1000 μg/ml BNP solution preparation with 800 μl of saline.
- Three kinds of BNP nasal solution preparations with concentrations of 100 μg/ml, 50 μg/ml, and 200 μg/ml obtained as above were used to fill a metered-dose nasal spraying device (Astellas Pharma, Inc.; a metered-dose nasal spraying device for Intal nasal solution was used), and the device was adjusted so that the amount of a solution preparation delivered by one spray is 130 μl. Accordingly, the amount of BNP contained in one spray of solution for the BNP nasal solution preparations with 100 μg/ml, 50 μg/ml, and 200 μg/ml are 13 μg, 6.5 μg, and 26 μg, respectively.
- For comparative tests, a 500 μg/ml ANP solution preparation was prepared by dissolving 0.5 mg of human ANP-28 (Peptide Institute, Inc.) in 1 ml of saline. 1 ml of the obtained 500 μg/ml ANP solution was diluted with 9 ml of saline to prepare the ANP nasal solution preparation with an ANP concentration of 50 μg/ml.
- The ANP nasal solution preparation with an ANP concentration of 50 μg/ml obtained as above was used to fill a metered-dose nasal spraying device (Astellas Pharma, Inc.; a metered-dose nasal spraying device for Intal nasal solution was used), and the device was adjusted so that the amount of a solution preparation delivered by one spray is 130 μl. Accordingly, the amount of ANP contained in one spray of solution is 6.5 μg.
- Diagnosis, evaluation of symptoms, and examination of the CNP nasal drop preparations, BNP nasal drop preparations and ANP nasal drop preparation were performed as follows.
- The subjects are patients in whom conventional external medicines such as steroids are not sufficiently effective, or patients in whom the use of steroids must be avoided due to local side effects such as nasal irritation and dryness. Diagnosis and treatment of these subjects were performed by the present applicant as a medical doctor.
- Severity evaluation of symptoms of allergic rhinitis was performed, in principle, in accordance with “Guidelines for medical care of nasal allergies, 2009 edition” (edited by the committee for creation of guidelines for medical care of nasal allergies), by classifying into 5 stages as shown below. Here, “mixed type” refers to the cases wherein both of the sneezing attack or rhinorrhea and the nasal occlusion were presented with the same severity.
-
TABLE 2 Degree and Sneezing attack or rhinorrhea (determined by item with higher score) severity − + 2+ 3+ 4+ Nasal 4+ Most severe Most severe Most severe Most severe Most severe occlusion (Nasal (Nasal (Nasal (Nasal (mixed type) occlusion occlusion occlusion occlusion type) type) type) type) 3+ Severe Severe Severe Severe Most severe (Nasal (Nasal (Nasal (mixed (sneezing/ occlusion occlusion occlusion type) rhinorrhea type) type) type) type) 2+ Moderate Moderate Moderate Severe Most severe (Nasal (Nasal (mixed (sneezing/ (sneezing/ occlusion occlusion type) rhinorrhea rhinorrhea type) type) type) type) + Mild Mild Moderate Severe Most severe (Nasal (mixed (sneezing/ (sneezing/ (sneezing/ occlusion type) rhinorrhea rhinorrhea rhinorrhea type) type) type) type) − No Mild Moderate Severe Most severe symptoms (sneezing/ (sneezing/ (sneezing/ (sneezing/ rhinorrhea rhinorrhea rhinorrhea rhinorrhea type) type) type) type) - In the above table, evaluation scores for sneezing fit, rhinorrhea and nasal occlusion are as described in the table below.
-
TABLE 3 − + 2+ 3+ 4+ Sneezing 0 1-5 6-10 11-20 21 or more attack (average number of sneezing attacks per day) Nasal drip 0 1-5 6-10 11-20 21 or more (average number of nose blows a day) Nasal 0 No mouth Strong Very strong Nose is occlusion breathing, occlusion, occlusion, completely but with breathing with mouth occluded nasal with the breathing all day. occlusion mouth for a several considerable times a amount of day time a day Degree of 0 Almost no Between Cannot have Normal disturbance disturbance (+) and normal daily daily life in daily (3+) life because is life of impossible disturbance - Administration tests of the nasal solution preparations of the present invention were performed by, in principle, spraying the CNP nasal solution, BNP nasal solution or ANP nasal solution used to fill a nasal spraying device twice a day at awakening time and before bedtime, with one spray in each nostril at each time. Accordingly, the amount of application of CNP, BNP or ANP per one spray for the 100 μg/ml CNP nasal solution, BNP nasal solution, and ANP nasal solution corresponds to 13 μg. Similarly, the amounts of application of CNP, BNP or ANP per one spray for the 50 μg/ml and 200 μg/ml CNP/BNP/ANP solutions correspond to 6.5 μg and 26 μg, respectively.
- Prior to the application of CNP preparations, BNP preparations or ANP preparation, the subjects' history was obtained, scratch tests for allergens were performed and diagnosis was made. Tables 4-7 show the results of the subjects' history taking, diagnosis, i.e., sex, age, past history, family history, scratch test result, diagnostic finding, and symptom evaluation of the subject in each case.
- The after-mentioned subject of
Case 10 was enrolled in the study, and the 100 μg/ml CNP nasal solution was applied once a day for 7 days consecutively, then after 14 days of discontinuation, the 50 μg/ml CNP nasal solution was tested. As a result, the time required for the manifestation of the effect is approximately 20 min, that is, compared to the 100 μg/ml CNP nasal solution, approximately twice as long a time is required for the manifestation of the drug efficacy, with a slightly lower degree of improvement of nasal occlusion. Here, the 200 μg/ml CNP nasal solution showed significant effects on rhinitis without irritation, but the effects were not doubled compared to the case of 100 μg/ml CNP nasal solution. - A dosage-finding study was also performed for BNP, and results similar to those for CNP were obtained.
- Results of administration of CNP preparations are summarized in Tables 4 and 5 and
FIG. 2 , and details are described below as test examples 1-10. -
TABLE 4 Case 1 Case 2 Case 3 Case 4 Case 5 Sex Female Female Female Male Female Age 48 years old 39 years old 32 years old 23 years old 24 years old Severity Severe Severe Severe Severe Severe level Disease type Mixed Sneezing/ Mixed Nasal occlusion Mixed rhinorrhea Family Child; atopic Child; atopic Mother; atopic Mother; atopic Younger sister; history dermatitis, dermatitis dermatitis dermatitis atopic dermatitis allergic rhinitis Past history Atopic Atopic dermatitis Atopic Child asthma Atopic dermatitis dermatitis dermatitis Scratch test House dust: 3+ House dust: 2+ House dust: 1+ House dust: 3+ House dust: 3+ Mite: 3+ Mite: 2+ Mite: 1+ Mite: 3+ Mite: 3+ Cedar: — Cedar: 2+ Cedar: 1+ Cedar: — Cedar: 3+ Orchard grass: — Orchard grass: 3+ Orchard grass: 2+ Orchard grass: — Orchard grass: 2+ Ragweed: — Ragweed: 1+ Ragweed: 1+ Ragweed: — Ragweed: 2+ Diagnostic finding Nasal drip (11-20) A lot of nasal drip, (11-20) (1-5) (11-20) (average so she uses a pile number of of tissue paper for nose blows a nose blowing day) (approx. 20) Nasal Very strong nasal No mouth breathing, Very strong nasal Very strong nasal Very strong nasal occlusion occlusion, with but has nasal occlusion, and occlusion, with occlusion, with mouth breathing occlusion. she is unable to mouth breathing mouth breathing for for a smell well. for a considerable a considerable considerable amount of time a amount of time a day. amount of time a day. day. Effects of Not used due to Nasal irritation, Nasal Not used because of Not used due to nasal steroid nasal itching, sneezing, irritation, and withdrawal irritation and nasal spray irritation. and rhinorrhea dryness sensation difficulty due to dryness. rather worsened, as if the nose is long term use of and no subjective in contact with systemic steroids. improvement the back of the noticed. throat existed; no satisfactory effects. Dosage form CNP nasal CNP nasal solution CNP nasal solution CNP nasal solution CNP nasal solution solution preparation preparation preparation preparation preparation Dosage 100 μg/ml 100 μg/ml 100 μg/ml 100 μg/ml 100 μg/ml Number of Morning + before Once in the morning Once in the Once a day Once a day nasal bedtime morning applications Number of 2 days 3 days 7 days 4 days 1 day days applied Symptom 15 min later, Nasal itching 5 min later, nasal 5 to 10 min later, 20 min later, nasal improvement rhinorrhea was disappeared occlusion nasal occlusion occlusion sensation by initial relieved and immediately after disappeared and sensation was improved and nasal nasal occlusion spraying, and rhinorrhea was disappeared. rhinorrhea was application was improved. rhinorrhea was relieved. relieved. relieved 10 min later. Progress and Symptoms reduced The sinus was not Nasal occlusion The effects lasted Both rhinorrhea and symptom by spraying twice congested and sensation all day, and the nasal occlusion were improvement a day for 2 days rhinorrhea stopped disappeared by nasal passages alleviated for one including the by application continuous opened and the day. application at once a day. The application once subject was able to the first visit, effects lasted all a day in the breathe easily. and both day. After morning, and After 4 days of rhinorrhea and discontinuation of rhinorrhea was application, the nasal occlusion the application, completely application was were markedly effects lasted for relieved 3 days discontinued, but improved. The 2-3 days, and later. After the effects lasted effects lasted watery nasal drip continuous for approximately for 2-3 days after was suppressed. application once 3 days thereafter. discontinuation a day for one week, of the application was application, discontinued, but without the effects were symptoms. maintained for a long time thereafter. Symptom Severe → mild Severe → mild Severe → mild Severe → mild Severe → mild improvement -
TABLE 5 Case 6 Case 7 Case 8 Case 9 Case 10 Sex Female Female Female Male Female Age 37 years old 39 years old 39 years old 21 years old 55 years old Severity Severe Severe Moderate Severe Severe level Disease type Mixed Mixed Mixed Nasal occlusion Mixed Family Mother and elder Child; atopic None Mother; atopic Child; atopic history sister; atopic dermatitis dermatitis dermatitis dermatitis Past history Atopic Atopic dermatitis Child asthma, Atopic dermatitis, Atopic dermatitis dermatitis atopic dermatitis, allergic sinusitis conjunctivitis Scratch test House dust: 3+ House dust: — House dust: 2+ House dust: 2+ House dust: 1+ Mite: 3+ Mite: 2+ Mite: 3+ Mite: 3+ Mite: 2+ Cedar: — Cedar: — Cedar: 2+ Cedar: 2+ Cedar: 2+ Orchard grass: — Orchard grass: 3+ Orchard grass: 1+ Orchard grass: 3+ Orchard grass: 3+ Ragweed: — Ragweed: — Ragweed: — Ragweed: 1+ Ragweed: 2+ Cat hair: 3+ Diagnostic finding Nasal drip (11-20) (11-20) (6-10) (1-5) (11-20) (average number of nose blows a day) Nasal Very strong nasal Very strong nasal Strong nasal Very strong nasal Strong nasal occlusion occlusion, with occlusion, with occlusion, with occlusion, with occlusion, always mouth breathing mouth breathing mouth breathing mouth breathing for having aural for a for a considerable several times a day. a considerable fullness. considerable amount of time a amount of time a amount of time a day. day. day. Effects of Not used due to Not used due to Not used because Has used in the past, Nasal occlusion did steroid nasal nasal irritation, she suffered from but nasal occlusion not improve nasal spray irritation. sneezing and runny sinusitis 1.5 years did not improve sufficiently and nose. ago. sufficiently. effects did not last for a long time. Dosage form CNP nasal solution CNP nasal solution CNP nasal solution CNP nasal solution CNP nasal solution preparation preparation preparation preparation preparation Dosage 100 μg/ml 100 μg/ml 100 μg/ml 100 μg/ml 100 μg/ml Number of Morning + before Once a day Once a day Once a day Once a day nasal bedtime (2 times) applications Number of 5 days 1 day 1 day 1 day 7 days days applied Symptom 1 hr later, nasal Nasal passages Nasal passages Nasal passages 10 min later, nasal improvement occlusion was opened immediately opened immediately opened immediately occlusion and runny by initial markedly after the after the after the nasal nose completely nasal improved and she application and application and application and stopped. Aural application could breathe nasal occlusion was nasal occlusion was rhinorrhea and fullness also easily and sleep markedly improved markedly improved nasal occlusion disappeared. well. 10 min later. 10 min later, nasal were markedly drip stopped 20 min improved 25 min later. later, then rhinorrhea stopped. Progress and By application By application once By application once The effects lasted The effects lasted symptom once a day, nasal a day, effects a day, effects all day by all day by improvement itching and a lasted until the lasted until the application once in application once a nasal occlusion next day and next day, and the late afternoon, day and nasal sensation improvement in rhinorrhea and and for 3 days symptoms stayed disappeared and rhinorrhea and nasal occlusion thereafter, runny improved, with she no longer nasal occlusion was were improved to a nose reduced to a watery nasal drip needed to blow her maintained. barely-troublesome barely-troublesome stopped and nasal nose. After level. level without any passages feeling application treatment. open. After twice a day, in the During this period, discontinuation of morning and internal the application, the before bedtime application of effects lasted for for a total of 5 antihistamine approximately 1 days, the drugs was not week. application was necessary. discontinued, but the effects lasted for 4-5 days. Symptom Severe → mild Severe → mild Moderate → mild Severe → mild Severe → mild improvement - The subject is a 48-year-old female who is a patient with severe mixed-type rhinitis. She has a past history of atopic dermatitis, and her child also suffers from atopic dermatitis and allergic rhinitis. Scratch test results are:
house dust 3+ andmite 3+. She has very strong nasal occlusion, with mouth breathing for a considerable amount of time a day, and also has strong watery nasal drip. She is unable to use steroid nasal sprays due to nasal irritation. - As a preliminary test, the CNP nasal solution with a concentration of 100 μg/ml obtained in Example 1 was sprayed once into each nostril of the subject (the amount of CNP administered to one nasal cavity was 13 μg). As a result, 15 min later, rhinorrhea was relieved and nasal occlusion was improved. Permeability of the CNP nasal solution was good without nasal irritation, and side effects such as local irritation symptoms were not observed.
- Therefore, in the morning and before bedtime on the next day (a total of two times), the present CNP nasal solution was sprayed once in each nostril, then the symptoms reduced and rhinorrhea and nasal occlusion were markedly improved for the whole day of
day 3. After discontinuation of the nasal spray, the effects persisted for 2-3 days without symptoms. - The subject is a 39-year-old female who is a patient with severe sneezing/rhinorrhea-type rhinitis. She has a past history of atopic dermatitis, and her child also suffers from atopic dermatitis. Scratch test results are:
house dust 2+,mite 2+,cedar 2+,orchard grass 3+, andragweed 1+. She is a severe case having both symptoms of nasal occlusion, with sneezing and watery nasal drip requiring a pile of tissue paper, and is taking second-generation antihistamine drugs every day. With steroid nasal sprays, nasal irritation, nasal itching, sneezing and rhinorrhea become worsened, and subjective effects of improvement are not noted. Similar to test example 1, the CNP nasal solution with a concentration of 100 μg/ml obtained in Example 1 was sprayed once into each nostril of the subject (the amount of CNP administration in one nasal cavity was 13 μg). As a result, nasal itching disappeared immediately after the spraying, and rhinorrhea was relieved after 10 min. The CNP nasal solution had a good permeability without nasal irritation, and no local side effects were observed. By use only once a day, the nose was not congested and absolutely no rhinorrhea was observed. The effects lasted for a whole day. - Also on the next morning, absolutely no rhinorrhea was observed. To be safe, the present CNP nasal solution was sprayed once into each nostril in the morning. As a result, the nose was not congested and no rhinorrhea was observed during this day. She said that she almost had forgotten about rhinitis, and second-generation antihistamine drugs had not been necessary.
- These results demonstrated that the CNP nasal solution of the present invention is superior in persistence, absorbability and fast-acting property, and that sufficient effects can be obtained by spraying only once a day.
- The subject is a 32-year-old female who is a patient with severe mixed-type rhinitis. She has a past history of atopic dermatitis, and her mother also suffers from atopic dermatitis. Scratch test results are:
house dust 1+,mite 1+,cedar 1+,orchard grass 2+, andragweed 1+. This subject has a very strong nasal occlusion, and is unable to smell. She also has severe watery rhinorrhea. Steroid nasal spray induced nasal irritation and dryness sensation as if the nose was in contact with the back of the throat, and no satisfactory effects were obtained except that runny nose slightly reduced after the application. - Similar to test example 1, the CNP nasal solution with a concentration of 100 μg/ml obtained in Example 1 was sprayed once into each nostril of the subject (the amount of CNP administered in one nasal cavity was 13 μg). As a result, the nasal occlusion sensation disappeared and rhinorrhea was relieved 5 min later. No local irritation symptoms were observed. Thereafter, spraying once a day in the morning was continued, then nasal occlusion sensation disappeared and she became able to smell, watery nasal drip was improved, and rhinorrhea was completely relieved 3 days later. No local side effects such as irritation, as well as no systemic side effects such as drowsiness were observed. For a week, the effects lasted for the whole day by application once in the morning; an anti-allergic agent was orally taken on
day 1, but this administration was not necessary fromday 2 and thereafter. Application was discontinued after one week, but the effects lasted for more than 2 weeks thereafter. This finding demonstrated that the CNP nasal solution of the present invention is excellent in fast-acting property, absorbability and persistence, and that sufficient effects can be obtained by spraying only once a day. - The subject is a 23-year-old male who is a patient with severe nasal-occlusion-type rhinitis. He has a past history of childhood asthma, and his mother suffers from atopic dermatitis. Scratch test results are:
house dust 3+, andmite 3+. This subject has a very strong tendency of nasal occlusion, with mouth breathing for a considerable amount of time a day. In addition, because of the withdrawal difficulty symptoms due to long-term use of systemic steroids, this subject must avoid the use steroids. - Similar to test example 1, the CNP nasal solution with a concentration of 100 μg/ml obtained in Example 1 was sprayed once into each nostril of the subject (the amount of CNP administration in one nasal cavity was 13 μg). As a result, nasal occlusion sensation disappeared within 5 to 10 min. The effects lasted for one day, and he was able to breathe easily with open nasal passages. After the application of once a day for 4 days, the application was discontinued, but the effects lasted for about 3 days thereafter.
- Similar to the above test cases, the CNP nasal solution has a good permeability without irritation or local side effects. These facts are also observed in the following test examples.
- Thus, the CNP nasal solution of the present invention has remarkable effects, and can be a great relief for patients with rhinitis who must avoid the use of steroid preparations.
- The subject is a 24-year-old female who is a patient with severe mixed-type rhinitis. She has a past history of atopic dermatitis, and her younger sister also suffers from atopic dermatitis. Scratch test results are:
house dust 3+,mite 3+,cedar 3+,orchard grass 2+, andragweed 2+. The subject goes through mouth breathing for a considerable amount of time a day, and has a very strong tendency of nasal occlusion, with severe nasal drip. She dose not use steroid nasal sprays because of nasal irritation and dryness. - Similar to test example 1, the CNP nasal solution with a concentration of 100 μg/ml obtained in Example 1 was sprayed once into each nostril of the subject (the amount of CNP administered in one nasal cavity was 13 μg). As a result, nasal occlusion sensation was improved 20 min later, and rhinorrhea was relieved. The effects lasted for one day, and alleviation of the nasal occlusion and rhinorrhea persisted on the next day and thereafter.
- The subject is a 37-year-old female who is a patient with severe mixed-type rhinitis. She has a past history of atopic dermatitis, and her mother and elder sister also suffer from atopic dermatitis. Scratch test results are:
house dust 3+ andmite 3+. This subject has, similar toCase 5, mouth breathing for a considerable amount of time a day, and has a very strong tendency of nasal occlusion, with severe nasal drip. The subject was suffering from strong nasal occlusion and sneezing at night, as well as nasal itching. She dose not use steroid nasal sprays because of nasal dryness. - The CNP nasal solution with a concentration of 100 μg/ml obtained in Example 1 was sprayed once into each nostril of the subject before bedtime (the amount of CNP administration in one nasal cavity was 13 μg); 1 hr later, nasal occlusion was markedly improved and she was able to breathe easily and sleep well with well-opened nasal passages even in the early hours of the morning, so she reported.
- Moreover, the CNP nasal solution of the invention is re-sprayed once into each nostril on the next morning, following the administration previous night, then nasal itching and nasal occlusion sensation disappeared for the whole day. Watery nasal drip was improved to a condition in which blowing of nose was not required. No local irritation symptoms were observed. Thereafter, because the symptoms had stabilized by the twice a day application for 5 days, the application was discontinued. The effects persisted for 4-5 days after the discontinuation, and the improved states of nasal itching, nasal occlusion and rhinorrhea were maintained.
- The subject is a 39-year-old female who is a patient with severe mixed-type rhinitis. She has a past history of atopic dermatitis, and her child also suffers from atopic dermatitis. Scratch test results are: house dust −,
mite 2+, cedar −,orchard grass 3+, and ragweed −. This subject, similar toCase 6, breathes through her mouth for a considerable amount of time a day, and has a very strong tendency of nasal occlusion, with severe nasal drip. In particular the subject was suffering from severe rhinorrhea, nasal occlusion and sneezing in the early hours of the morning, as well as nasal itching. She had nasal irritation against steroid nasal sprays, and because sneezing and runny nose rather worsened, she was unable to use steroids; when she orally took second-generation antihistamine drugs, she tends to feel sluggish; therefore, the use of antihistamine drugs must be avoided as much as possible. - Under such conditions, the CNP nasal solution with a concentration of 100 μg/ml obtained in Example 1 was sprayed once into each nostril of the subject (the amount of CNP administered in one nasal cavity was 13 μg); immediately after spraying, the nasal passages opened, and the nasal occlusion was markedly improved after 10 min. She also reported that she was able to breathe easily. Watery nasal drip, that had continuously discharged if the nostrils were not packed with tissue paper, stopped. With an application once a day, the effects lasted until the next day, and the improvements in nasal occlusion and rhinorrhea were maintained.
- Thus, the CNP nasal solution of the present invention is a relief for rhinitis patients with whom the use of conventional steroids and antihistamine drugs should be avoided or inapplicable.
- The subject is a 39-year-old female who is a patient with moderate mixed-type rhinitis. She has a past history of atopic dermatitis, childhood asthma and sinusitis, but her family members do not suffer from any of these diseases or allergic rhinitis.
- Scratch test results are:
house dust 2+,mite 3+,cedar 2+,orchard grass 1+, ragweed −, andcat hair 3+. This subject goes through mouth breathing several times a day, and has a strong tendency of nasal occlusion. She did not use steroids because she had suffered from sinusitis one and half years ago. - The CNP nasal solution with a concentration of 100 μg/ml obtained in Example 1 was sprayed once into each nostril of this subject (the amount of CNP administered in one nasal cavity was 13 μg); as a result, the nasal passages opened immediately after spraying, and the nasal occlusion was markedly improved after 10 min, so that she could breathe easily. 20 min later, watery nasal drip stopped. Moreover, she reported that she could breathe easily.
- The effects lasted for a whole day by application once a day, and both nasal occlusion and rhinorrhea were improved to a barely-troublesome level.
- The subject is a 21-year-old male who is a patient with severe nasal-occlusion-type rhinitis. He has a past history of atopic dermatitis and allergic conjunctivitis, and his mother also suffers from atopic dermatitis. Scratch test results are:
house dust 2+,mite 3+,cedar 2+,orchard grass 3+, andragweed 1+. This subject, similar toCase 7, breathes through his mouth for a considerable amount of time a day, and has a very strong tendency of nasal occlusion. He had used steroids in the past, but nasal occlusion was not improved sufficiently. Nasal drip was not so severe. - The CNP nasal solution with a concentration of 100 μg/ml obtained in Example 1 was sprayed once into each nostril of this subject (the amount of CNP administered in one nasal cavity was 13 μg); as a result, immediately after spraying, the nasal passages opened, and the nasal occlusion was markedly improved and rhinorrhea was relieved after 25 min without any irritation symptoms. As a result of nasal application of once at early evening, the effects lasted for one day and thereafter runny nose almost reduced to a barely-troublesome level for 3 days without any additional treatment, and blowing of his nose was hardly required. During this time, internal administration of antihistamine drugs was not necessary.
- The subject is a 55-year-old female who is a patient with severe mixed-type rhinitis. She has a past history of atopic dermatitis, and her child also suffers from atopic dermatitis. Scratch test results are:
house dust 1+,mite 2+,cedar 2+,orchard grass 3+, andragweed 2+. This subject has a strong nasal occlusion, and always has aural fullness. Oral steroids and steroid sprays were applied to this subject three times a day, but the effects on the nasal occlusion were not sufficient, and the durability of the effects was poor, while improvement in rhinorrhea was insufficient. Upon application of steroid sprays, she had a headache with a feeling of heaviness from the back of the nose to the head and drowsiness. - The CNP nasal solution with a concentration of 100 μg/ml obtained in Example 1 was sprayed once into each nostril of this subject (the amount of CNP administered in one nasal cavity was 13 μg); as a result, nasal occlusion and runny nose stopped completely without irritation symptoms after 10 min. Thereafter, the CNP nasal solution of the invention was applied twice in the morning and before bedtime without taking steroids internally, then nasal occlusion and rhinorrhea were markedly improved, and aural fullness also disappeared. The effects lasted for a whole day with application once daily thereafter, and nasal symptoms were markedly improved, with runny nose stopped and nasal occlusion suppressed with a feeling of open nasal passages. It was not necessary to use internal steroids or injections which had previous been continuously used. The application was discontinued after 7 days of application of the 100 μg/ml CNP nasal solution, but the effects lasted for approximately 1 week and the condition of reduced nasal occlusion and rhinorrhea was maintained. After 14 days of discontinuation, the application of the 50 μg/ml CNP nasal solution at an interval of once a day was started and continued for 5 days; then, nasal occlusion was relieved 20 min after the nasal spraying, and rhinorrhea was also improved to the level of 3 to 4 times a day of nose blowing. Moreover, aural fullness had disappeared. These effects lasted for 3-4 days after discontinuation of the application.
- The results of the use of BNP preparations are summarized in Table 6 and
FIG. 3 , and details are described below as test examples 11-16. -
TABLE 6 Case 11 Case 12 Case 13 Case 14 Case 15 Case 16 Sex Female Female Female Female Female Male Age 42 years old 21 years old 28 years old 46 years old 45 years old 35 years old Severity Most severe Moderate Most severe Most severe Severe Most severe level Disease Sneezing/ Mixed Nasal occlusion Mixed Sneezing/ Mixed type rhinorrhea rhinorrhea Family Child; allergic Father; allergic Younger sister; Child; allergic Child; allergic Father, elder history rhinitis, rhinitis allergic rhinitis rhinitis, sister, child; atopic rhinitis, atopic allergic dermatitis atopic dermatitis rhinitis dermatitis, Past Atopic Atopic Atopic Atopic Atopic Allergic history dermatitis, dermatitis dermatitis dermatitis, dermatitis conjunctivitis allergic allergic conjunctivitis conjunctivitis Scratch House dust: 2+ House dust: 1+ House dust: 1+ House dust: 2+ House dust: 2+ House dust: − test Mite: 2+ Mite: 2+ Mite: 2+ Mite: 2+ Mite: 3+ Mite: 1+ Cedar: − Cedar: 3+ Cedar: 3+ Cedar: 3+ Cedar: 1+ Cedar: 2+ Orchard grass: 3+ Orchard grass: 1+ Orchard grass: 3+ Orchard grass: 3+ Orchard grass: 2+ Orchard grass: 3+ Ragweed: 2+ Ragweed: 1+ Ragweed: 2+ Ragweed: 2+ Ragweed: 1+ Ragweed: 1+ Diagnostic finding Nasal drip Constant runny (approx. 10) Runny nose does Constant watery Watery nasal Watery nasal (average nose not stop all day rhinorrhea if drip discharges drip number of (21 or more) (21 or more) the nostrils continuously continuously nose blows were not packed and discharges so a day) (21 or more) perennially. that he uses 2 (approx. 20) boxes of tissue paper per day. (21 or more) Nasal Has mouth Due to strong Almost no mouth Fairly strong Almost no nasal Completely ccclusion breathing only nasal occlusion, breathing, but occlusion, with occlusion occluded all at night due to mouth breathing, has nasal mouth breathing (less than +) day. nasal at intervals of occlusion. for a occlusion. the day. considerable amount of time a day. Effects of She never felt At the time of She had Completely no She has strong He tended to show steroid the effects, worsening of irritation with effects by nasal steroid nasal spray/ having strong symptoms, tight-stretched steroid nasal irritation, and resistance, so local side local dryness sufficient feeling of nasal solutions; watery nasal that steroids affects with pain. effects were not mucosa and having local drip increases became obtained by dryness; dryness from that before ineffective from steroid nasal therefore she had sensation. the nasal the second application, no satisfactory application. application. especially for therapeutic He also had rhinorrhea. effects. strong irritation symptoms. Dosage BNP nasal BNP nasal BNP nasal BNP nasal BNP nasal BNP nasal form solution solution solution solution solution solution preparation preparation preparation preparation preparation preparation Dosage 50 μg/ml 50 μg/ml 100 μg/ml 50 μg/ml 200 μg/ml 50 μg/ml Number of Once in the Twice in the Once in the Once before Once a day Once in the nasal morning, or morning and at morning bedtime morning, or applications twice in the night twice in the morning and at morning and at night night Number of 5 days 7 days 1 day 4 days 2 days 5 days days applied Symptom 10 min later, the Watery Runny nose The nose felt Nasal drip Watery nasal improvement by BNP solution rhinorrhea stopped 30 min relieved 5 min stopped 10 min drip and itching initial permeated the stopped 10 min later. later, and nasal later. She had stopped 10 min nasal nasal mucosa and later and nasal Sneezing also passages opened no irritation later. No application symptoms occlusion stopped 1 hr 15 min later, and no irritation reduced and sensation after the nasal with marked uncomfortable symptoms. watery nasal improved 20 min spraying. improvement in feeling. drip was later. rhinorrhea; improved. nasal occlusion was markedly improved 30 min later and itching in the throat was also relieved. Progress Symptoms can be As a result of The effects By nasal Without combined By application and relived by continuous lasted for half spraying once use of internal twice in the symptom application application a day before bedtime, antihistamine morning and improvement once or twice a twice a day for 1 thereafter, and the effects drugs, the night, nasal day. week, watery a runny nose lasted for 3-4 effect of the occlusion was Absolutely no rhinorrhea and began at about 9 days; stoppage of improved, and local nasal occlusion o'clock at thereafter nasal drip internal irritation were improved; night. application lasted all day, administration of symptoms. therefore, the once before and watery nasal antihistamine application was bedtime every drip could be drugs was discontinued. 3-4 days relived by unnecessary. Thereafter, the maintained the application once After symptoms did not condition with a day the next discontinuation reappear for 4-5 improved day. of the days, and a rhinorrhea, application, the reduced state nasal occlusion effects to was maintained. and itching of relieve the eyes. rhinorrhea and nasal occlusion lasted for 7 days. Symptom Most severe → Moderate → mild Most severe → Most severe → Severe → mild Most severe → improvement mild mild moderate mild - The subject is a 42-year-old female who is a patient with most severe sneezing/rhinorrhea-type rhinitis. She has a past history of atopic dermatitis and allergic conjunctivitis, and her child suffers from allergic rhinitis and atopic dermatitis. Scratch test results are:
house dust 2+,mite 2+, cedar −,orchard grass 3+, andragweed 2+. This subject breathes through her mouth only at night due to nasal occlusion. This subject has suffered from atopic dermatitis since infancy, and also had a pollen allergy since she was 22-23 years old. Her symptoms worsen from May to early July every year. During this period, she sneezes constantly and has a runny nose. She does not feel any effects from steroid nasal sprays, and only experiences a strong dryness sensation with a pain as local irritation symptoms. - As a trial, the BNP nasal solution with a concentration of 50 μg/ml obtained in Example 1 was sprayed only once into each nostril of this subject (the amount of BNP administered in one nasal cavity was 6.5 μg); then 10 min later, the BNP nasal solution permeated the nasal mucous membrane and the symptoms were relieved, and watery nasal drip was improved. Since these effects were confirmed, she went out under the sun after spraying once in the morning on the 2nd day, and symptoms of pollen allergy were improved to a barely-troublesome level, and runny nose and sneezing were not observed until early evening. For a period of 5 days thereafter, she used the 50 μg/ml BNP nasal solution spraying once in the morning; on some days runny nose and sneezing did not occur all day, but on other days runny nose occurred in the afternoon; in these cases, application twice a day could relieve the symptoms. Antihistamine drugs were not necessary. Moreover, local irritation symptoms did not occur.
- The subject is a 21-year-old female who is a patient with moderate mixed-type rhinitis. She has a past history of atopic dermatitis, and her father suffers from allergic rhinitis. Scratch test results are:
house dust 1+,mite 2+,cedar 3+,orchard grass 1+, andragweed 1+. This subject has suffered from atopic dermatitis since infancy, and also pollen allergy since 2 years ago; she has itching with a tickling sensation and rhinorrhea, nasal occlusion, which worsen particularly when she is tired. Nasal occlusion is strong and she goes through mouth breathing several times a day. Nasal steroids did not show sufficient effects on this subject at times of worsening of the symptoms, particularly on rhinorrhea. - As a trial, the BNP nasal solution with a concentration of 50 μg/ml obtained in Example 1 was sprayed only once into each nostril of this subject (the amount of BNP administered in one nasal cavity was 6.5 μg); 10 min later, watery rhinorrhea stopped and opening of the nasal passages was slightly improved; nasal occlusion was improved 20 min later. The next morning, by only one spray, the usual nasal itching and runny nose were relieved after 10-20 min, and the nasal occlusion sensation reduced and the effects lasted until dinnertime. As a result of use twice a day in the morning and at night for one week, watery rhinorrhea and nasal occlusion were improved; accordingly the application was discontinued. Thereafter the effects lasted and rhinorrhea and nasal occlusion did not relapse for 4-5 days after the discontinuation of the nasal application, maintaining the relieved condition. The application of BNP nasal solution twice a day improved the symptoms from moderate to mild degree.
- The subject is a 28-year-old female who is a patient with the most severe rhinorrhea-type rhinitis. She has a past history of atopic dermatitis, and her younger sister suffers from allergic rhinitis and atopic dermatitis. Scratch test results are:
house dust 1+,mite 2+,cedar 3+,orchard grass 3+, andragweed 2+. This subject has suffered from atopic dermatitis since infancy, and symptoms of pollen allergy began to appear since around 20 years of age. In particular, runny nose and sneezing became very severe from around June, and she constantly blew her nose all day and runny nose was discharging when she bent her head down. This subject rarely undergoes mouth breathing, but has a nasal occlusion. - The BNP nasal solution with a concentration of 100 μg/ml obtained in Example 1 was sprayed only once into each nostril of this subject (the amount of BNP administered in one nasal cavity was 13 μg); then 30 min later, runny nose stopped. Sneezing also stopped 1 hr after the application. Thereafter, the effects of the present nasal solution lasted for half a day, and it was around 9 o'clock in the evening when runny nose began to discharge again. The degree of improvement in symptoms by the present BNP nasal solution was from a severe to a mild level.
- Upon application of steroid nasal solutions or internal application of steroids, the subject had irritation such that the surface of her nasal mucous membrane felt tightly-stretched, as well as dryness as side effects, and accordingly satisfactory therapeutic effects had not been obtained. In contrast, while the present BNP nasal solution shows superior effects to steroids, it does not exhibit such side effects.
- The subject is a 46-year-old female who is a patient with most severe mixed-type rhinitis. She has a past history of atopic dermatitis and allergic conjunctivitis, and her child also suffers from allergic rhinitis. Scratch test results are:
house dust 2+,mite 2+,cedar 3+,orchard grass 3+, andragweed 2+. This subject has suffered from a runny nose, nasal occlusion and itching of the eyes since she was about 10 years old, and from the age of 20, rhinitis has become more severe and runny nose continuously discharged if the nostrils were not packed. This subject has a fairly strong nasal occlusion, and breathes through her mouth for a considerable amount of time a day. - The BNP nasal solution with a concentration of 50 μg/ml obtained in Example 1 was sprayed only once into each nostril of this subject (the amount of BNP administered in one nasal cavity was 6.5 μg); 5 min later, she felt that her nose became lighter, and that her nasal passages opened after 15 min, with a marked improvement observed for rhinorrhea; the nasal occlusion sensation was markedly improved 30 min later, and itching of the throat was relieved. The subject was deeply moved by the efficacy of the present nasal solution.
- In addition, according to the report by the subject, steroid nasal solution showed not only irritation symptoms with a feeling of nasal dryness, but also no efficacy at all. In the case of the present nasal solution however, it gave a rather moist feeling.
- By spraying once before bedtime, she slept well without nasal drip, without taking oral antihistamine drugs. With application before bedtime, rhinorrhea symptoms did not bother her during the daytime of the next day, blowing her nose only once every hour, and combined internal use of antihistamine drugs was not necessary. The effects lasted for 3-4 days by only one application before bedtime; thereafter, application of once before bedtime every 3-4 days, totaling 4 time applications, enabled maintenance of relieved conditions wherein rhinorrhea, nasal occlusion and itching of the eyes reduced to moderate levels. The degree of improvement in symptoms by the BNP nasal solution was from a most severe to a moderate level.
- The subject is a 45-year-old female who is a patient with severe sneezing/rhinorrhea-type rhinitis. She has a past history of atopic dermatitis, and her child also suffers from atopic dermatitis and allergic rhinitis. Scratch test results are:
house dust 2+,mite 3+,cedar 1+,orchard grass 2+, andragweed 1+. This subject continuously has perennial watery nasal drip, but has almost no nasal occlusion. Nasal application of steroid drops increased watery nasal drip, giving strong nasal irritation. - The BNP nasal solution with a concentration of 200 μg/ml obtained in Example 1 was sprayed only once into each nostril of this subject (the amount of BNP administered in one nasal cavity was 26 μg); then 10 min later, nasal drip stopped. At this time, she reported that she had no local irritation symptoms or feelings of discomfort. Without combined internal application of antihistamine drugs, the effect of stopping nasal drip lasted all day. Watery nasal drip was suppressed by use once a day on the next day. The degree of symptoms was improved from severe to mild by the use of the BNP nasal solution for 2 days.
- The subject is a 35-year-old male who is a patient with the most severe mixed-type rhinitis. He has a complication of allergic conjunctivitis, and his father, elder sister and child suffer from allergic rhinitis. Scratch test results are: house dust −,
mite 1+,cedar 2+,orchard grass 3+, andragweed 1+. This subject has continuous watery nasal drip, so that he has to use 2 boxes of tissue paper to blow his nose. He also has nasal occlusion, and is in the condition of complete nasal stuffiness the entire time. These symptoms have persisted from late May to September. When nasal steroids are applied, he tends to have steroid resistance, so that the effect of the steroids cannot be attained from the second time use; moreover, he has strong irritation to the use of steroids. - The BNP nasal solution with a concentration of 50 μg/ml obtained in Example 1 was sprayed only once into each nostril of this subject (the amount of BNP administered in one nasal cavity was 6.5 μg); then 10 min later, watery nasal drip, nasal itching, and nasal occlusion sensations were relieved. At this time, no irritation symptoms were observed. Subsequently, spraying once in the morning for 5 days resulted in disappearance of
nasal itching 10 to 15 min later, and watery nasal drip stopped, and these effects lasted for one day without runny nose all day long. By use twice in the morning and at night, nasal occlusion was improved and internal use of antihistamine drugs became unnecessary. The degree of improvement in symptoms of a 5-day application period was from most severe to mild. After discontinuation of the usage, relieving effects of rhinorrhea and nasal occlusion were maintained for 7 days. - For comparison, tests were performed using ANP nasal solutions.
- Results of comparative examples using ANP preparations are summarized in Table 7, and details are described below as test examples 7-18.
-
TABLE 7 Case 17 Case 18 Case 2 (comparative example 1) (comparative example 2) (comparative example 3) Sex Male Female Female Age 28 years old 28 years old 40 years old Severity level Severe Severe Severe Disease type Mixed Mixed Sneezing/ rhinorrhea Family history Father; atopic dermatitis, Mother; allergic rhinitis Child; atopic dermatitis allergic rhinitis Past history Atopic dermatitis Atopic dermatitis Atopic dermatitis Scratch test House dust: 2+ House dust: 2+ House dust: 2+ Mite: 3+ Mite: 2+ Mite: 2+ Cedar: — Cedar: 2+ Cedar: 2+ Orchard grass: 3+ Orchard grass: 3+ Orchard grass: 3+ Ragweed: 2+ Ragweed: 2+ Ragweed: 1+ Diagnostic finding Nasal drip Severe runny nose and sneezing (11-20) Nasal drip is severe, so that (average number (Approx. 20) she uses a pile of tissue paper of nose blows a for nose blowing. day) (Approx. 20) Nasal occlusion Nasal occlusion sensation Strong at night. No mouth breathing at all, but becomes strong in around June, has nasal occlusion. so he has mouth breathing. Effects of — Not used because of nasal Nasal irritation, itching, steroid nasal irritation. sneezing and rhinorrhea spray conversely worsen, without subjective effects of improvement. Dosage form ANP nasal solution preparation ANP nasal solution preparation ANP nasal solution preparation Dosage 50 μg/ml 50 μg/ml 50 μg/ml Number of nasal Twice in the morning and at night Twice in the morning and at night Twice in the morning and at night applications Number of days 7 days 2 days 3 days applied Symptom The number of nose blows reduced Rhinorrhea did not stop 15 min At 1 hr later, a slight improvement by to approximately 10 times a day, later, but at 20 min later she improvement in nasal itching initial nasal but runny nose and sneezing subjectively felt that nasal was observed, but was not so application persisted, and nasal occlusion passages had opened wider than apparent. Rhinorrhea was not sensation was not improved. before the application. improved. Tickling feeling of the nose However, at 20 min thereafter, improved slightly. the nasal occlusion relapsed and she felt nasal itching. Progress and ANP nasal solution was used On the next morning, nasal After 3 days, only nasal itching symptom twice a day for 7 days; however, occlusion was so strong that she was mildly improved, but the improvement rhinorrhea and nasal occlusion woke up due to the occlusion, persistence was low, and when were not improved compared to and she sprayed the ANP nasal the ANP solution was used in the the state before the solution once, but nasal morning, the symptoms relapsed application. occlusion relapsed 20 min in the afternoon. No later. improvement in rhinorrhea was observed, and she needed to blow her nose approximately 20 times a day. Symptom Severe → severe Severe → severe Severe → severe improvement - The subject is a 28-year-old male who is a patient with severe mixed-type rhinitis. He has a past history of atopic dermatitis, and his father suffers from atopic dermatitis and allergic rhinitis. Scratch test results are:
house dust 2+,mite 3+, cedar −,orchard grass 3+, andragweed 2+. This subject has suffered from atopic dermatitis since infancy, and symptoms of pollen allergy appeared since he began to work; nasal occlusion becomes strong particularly around June and he tends to breathe through his mouth. Runny nose and sneezing are severe, and the number of times of nose blowing is approximately 20 times a day. - The ANP nasal solution with a concentration of 50 μg/ml obtained in Example 1 was sprayed twice a day into each nostril of this subject (the amount of ANP administered in one nasal cavity was 6.5 μg); however, runny nose and sneezing did not stop and the nasal occlusion sensation was not improved. The ANP nasal solution was used twice a day for 7 days, but no changes in rhinorrhea and nasal occlusion were observed between before and after the application, indicating no improvement. The degree of improvement in symptoms was from severe before the ANP application to still severe after the ANP application.
- The subject is a 28-year-old female who is a patient with severe mixed-type rhinitis. She has a past history of atopic dermatitis, and her mother also suffers from allergic rhinitis. Scratch test results are:
house dust 2+,mite 2+,cedar 2+,orchard grass 3+, andragweed 2+. This subject has perennial persistent rhinitis, which particularly worsens between early summer and early autumn, with constant sneezing and watery nasal drips, and a strong nasal occlusion at night. She reported that she does not use steroids because of nasal irritation. - The ANP nasal solution with a concentration of 50 μg/ml obtained in Example 1 was sprayed only once into each nostril of this subject (the amount of ANP administered in one nasal cavity was 6.5 μg); rhinorrhea did not stop 15 min later, but 20 min later she subjectively felt that nasal passages opened compared to the condition before application. However, thereafter within approximately 20 min, nasal occlusion re-occurred, and she had a tickly sensation. The ANP nasal solution was re-sprayed once at the night of the same day, and she subjectively felt that nasal passages opened 20 min later, but nasal occlusion re-occurred with a tickly sensation 15 min after the re-spraying. On the next morning, nasal occlusion was so strong it woke her up, so she sprayed the ANP nasal solution once; however, 20 min later nasal occlusion re-occurred. The severity level and the degree of improvement were from severe to severe, showing no satisfactory improvement effects.
- The subject is the same subject as the Case-2 subject in whom 100 μg/ml CNP nasal solution was tested. However, she was 40 years old when the ANP nasal solution was tested, because 11 months had passed since the CNP nasal solution was applied for 3 days. Background information including past history, family history, scratch test results, effects of steroids, etc. are the same as those described in test example 2 and Table 4.
- The ANP nasal solution with a concentration of 50 μg/ml obtained in Example 1 was sprayed once into each nostril of this subject (the amount of ANP administered in one nasal cavity was 6.5 μg); however, no immediate effect was observed. One hour later, a sign of slight improvement in nasal itching was observed, but it was not clear, and rhinorrhea was not improved. The ANP nasal solution was applied on the night of the same day, in the morning and at night of the next day and the day after the next day similarly to that mentioned above; 3 days later, only nasal itching was slightly improved, but its persistence was short, and nasal itching re-occurred in the afternoon when the nasal solution was used in the morning. No improvement in rhinorrhea was observed by application for 3 days, and she needed to blow her nose approximately 20 times a day. The severity level and degree of improvement was from severe to still severe, showing no apparent improvement effects.
- As is clear from the above test examples, the nasal solutions of the present invention manifested their effects, at approximately 10 to 20 min after spraying, on the representative symptoms of rhinitis, i.e., nasal occlusion, sneezing attack and rhinorrhea. They are effective to any type of rhinitis including the mixed type, the nasal-occlusion type, and the sneezing/rhinorrhea type. Furthermore, the nasal solutions of the present invention including both the CNP nasal solutions and the BNP nasal solutions not only have remarkable effects of improvement in rhinitis, but also their manifestation of drug efficacy is extremely fast, i.e., they are fast-acting, without local side effects such as irritation and systemic side effects such as drowsiness. They are also long-lasting, with excellent compliance of application of only 1-2 times a day. Thus, the present nasal solutions have ideal characteristics as nasal drop preparations. In addition, a trend was observed that repeated applications result in an increase in the degree of improvement in some cases.
- The nasal solutions of the present invention have more significant effects than those of conventional steroids and antihistamine drugs, and they are revolutionary drugs in terms of persistence, in that they can relieve symptoms by application only once a day.
- Moreover, since ANP and BNP share the same receptors, they were presumed to have identical effects; surprisingly, however, only BNP had significant effects of the two, contrary to expectations.
- We have conducted similar clinical tests with additional 10 cases; as a result, extremely remarkable improvement effects of symptoms were observed in all the cases including many severe cases wherein internal administration of anti-allergic agents and steroids could be terminated thereby, it is worth noting that with the nasal solutions of the present invention, a drastic reduction in medical expenses can be expected, in addition to their significant drug efficacy.
- The therapeutic preparations for rhinitis of the present invention are extremely effective for the treatment of various types of rhinitis, in particular allergic rhinitis, without a concern of causing side effects; thus, the present preparations are applicable to patients in whom conventional steroid nasal sprays and antihistamine drugs are not effective, or patients who must avoid the use of these drugs due to possible side effects, as well as young patients.
- Meanwhile, regarding the treatment of cedar pollen allergy, and for patients with moderate to most severe cedar pollen allergy, the following treatment is recommended according to the Allergic Rhinitis and Its Impact on Asthma (ARIA), 2008 edition: the treatment should start with a steroid nasal spray alone, then the amount of the steroid nasal spray should be increased when no improvement is observed; and an antihistamine drug should be added for sneezing/nasal itching, ipratropium bromide hydrate should be added for rhinorrhea, and a vasoconstrictive agent or an oral steroid should be added to nasal occlusion; that is, a step-wise treatment is recommended.
- However, conventionally-used steroid nasal sprays are used with a frequency of 2-4 times a day for adults, of which effects only last for a short period and the time required for manifestation of the effects is 1-3 days or more, requiring about 2 to 4 weeks before the maximum level of effects is reached. The level of satisfaction with the effects is low. In addition, they have side effects such as nasal irritation, dryness, and irritation in the throat, headache, and a risk of complication with infections due to long-term use.
- Mometasone furoate hydrate, which has an advantage of spraying once a day, has become recently available in Japan; however, the effects reported on pollen allergy in Europe and the United States after 2 weeks of application are as follows: the degree of improvement in overall symptoms was 40-50%, the degree of improvement in nasal occlusion was 30-40%; thus, they are not sufficient from the viewpoint of therapeutic effects.
- In contrast, the therapeutic preparations for rhinitis of the present invention can markedly improve severe rhinitis symptoms by application only once a day, without internal administration of steroids and antihistamine drugs. In addition, the effects are fast-acting and long-lasting. Namely, manifestation of the effects can be observed immediately after the application, and in most cases both nasal occlusion and rhinorrhea are markedly improved 10-20 min after the application. Moreover, in all the cases, excellent improvement effects on nasal occlusion and rhinorrhea are maintained all day by only spraying once or twice a day.
- Furthermore, local side effects observed in steroid nasal sprays are not at all manifested, and all the subjects reported that the present preparations are used quite comfortably. Systemic side effects such as drowsiness and a decrease in working efficiency observed by internal administration of antihistamine drugs and steroids are not present. Moreover, they have good compliance because their administration frequency is one spray at once or twice per day. Namely, the therapeutic preparations for rhinitis of the present invention are superior over conventional nasal solutions in terms of the fast-acting and long-lasting properties, are without side effects and have a good compliance; therefore they have ideal characteristics as a therapeutic preparation for allergic rhinitis.
- Accordingly, practical application of the therapeutic preparations for rhinitis of the present invention is very promising as a novel therapeutic preparation for rhinitis that replaces conventional steroids and antihistamine drugs.
Claims (26)
1.-23. (canceled)
24. A therapeutic preparation for rhinitis comprising C-type natriuretic peptide (CNP) or B-type natriuretic peptide (BNP) as the active ingredient.
25. The therapeutic preparation for rhinitis according to claim 24 , wherein the C-type natriuretic peptide (CNP) is CNP-22, CNP-53, or a CNP derivative in which any amino acid in the amino acid sequence(s) of CNP-22 or CNP-53 is/are deleted, substituted or added, and which has CNP activity.
26. The therapeutic preparation for rhinitis according to claim 24 , wherein the B-type natriuretic peptide (BNP) is BNP-26, BNP-32, BNP-45, or a BNP derivative in which any amino acid(s) in the amino acid sequence of BNP-26, BNP-32, or BNP-45 is/are deleted, substituted or added, and which has BNP activity.
27. The therapeutic preparation for rhinitis according to claim 24 , wherein the C-type natriuretic peptide (CNP) or B-type natriuretic peptide (BNP) is a chimeric peptide of CNP and BNP forming a ring structure by an intramolecular disulfide bond,
in which the CNP is a peptide selected from the group consisting of CNP-22, CNP-53, a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of CNP-22 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s), or a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of CNP-53 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s),
and in which the BNP is a peptide selected from the group consisting of BNP-26, BNP-32, BNP-45, a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of BNP-26 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s), a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of BNP-32 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s), or a peptide comprising any amino acid sequence of 5 or more consecutive amino acids in the amino acid sequence of BNP-45 having deletion(s), substitution(s), or addition(s) of any 1-5 amino acid(s),
and wherein the chimeric peptide has CNP activity or BNP activities; or a derivative of the chimeric peptide.
28. The therapeutic preparation for rhinitis according to claim 24 , wherein the concentration of the C-type natriuretic peptide (CNP) or B-type natriuretic peptide (BNP) is 20-200 μg/g.
29. The therapeutic preparation for rhinitis according to claim 24 , wherein the concentration of the C-type natriuretic peptide (CNP) or B-type natriuretic peptide (BNP) is 50-200 μg/g.
30. The therapeutic preparation for rhinitis according to claim 24 , wherein the concentration of the C-type natriuretic peptide (CNP) or B-type natriuretic peptide (BNP) is 50-100 μg/g.
31. The therapeutic preparation for rhinitis according to claim 24 , wherein the rhinitis is infectious rhinitis, hypersensitive non-infectious rhinitis, irritant rhinitis, atrophic rhinitis, or specific granulomatous rhinitis.
32. The therapeutic preparation for rhinitis according to claim 31 , wherein the infectious rhinitis is acute rhinitis or chronic rhinitis.
33. The therapeutic preparation for rhinitis according to claim 31 , wherein the hypersensitive non-infectious rhinitis is combined-type rhinitis (hypersensitive nose), rhinorrhea-type rhinitis, congestive-type rhinitis, or dry-type rhinitis.
34. The therapeutic preparation for rhinitis according to claim 33 , wherein the combined-type rhinitis (hypersensitive nose) is allergic rhinitis or non-allergic rhinitis.
35. The therapeutic preparation for rhinitis according to claim 34 , wherein the allergic rhinitis is allergic rhinitis against at least one allergen selected from the group consisting of house dust, mite, cedar, orchard grass, ragweed, and cat hair.
36. The therapeutic preparation for rhinitis according to claim 31 , wherein the irritant rhinitis is physical irritant-induced rhinitis, chemical irritant-induced rhinitis or radiation-induced rhinitis.
37. The therapeutic preparation for rhinitis according to claim 24 , wherein the rhinitis is mixed-type rhinitis, sneezing/rhinorrhea-type rhinitis, or nasal-occlusion-type rhinitis.
38. The therapeutic preparation for rhinitis according to claim 24 , wherein the dosage form is a nasal drop preparation selected from an ointment preparation, a gel preparation, a cream preparation, a lotion preparation, a liquid preparation, a powder preparation or a spray preparation.
39. The therapeutic preparation for rhinitis according to claim 24 , wherein the rhinitis is rhinitis in a subject suffering from atopic dermatitis or a subject having a difficulty in withdrawal from steroids.
40. The therapeutic preparation for rhinitis according to claim 28 , wherein the rhinitis is allergic rhinitis or non-allergic rhinitis.
41. The therapeutic preparation for rhinitis according to claim 28 , wherein the dosage form is a nasal drop preparation selected from an ointment preparation, a gel preparation, a cream preparation, a lotion preparation, a liquid preparation, a powder preparation or a spray preparation.
42. The therapeutic preparation for rhinitis according to claim 34 , wherein the dosage form is a nasal drop preparation selected from an ointment preparation, a gel preparation, a cream preparation, a lotion preparation, a liquid preparation, a powder preparation or a spray preparation.
43. The therapeutic preparation for rhinitis according to claim 40 , wherein the dosage form is a nasal drop preparation selected from an ointment preparation, a gel preparation, a cream preparation, a lotion preparation, a liquid preparation, a powder preparation or a spray preparation.
44. The therapeutic preparation for rhinitis according to claim 24 , wherein the rhinitis is rhinitis with treatment resistance to steroids or antihistamine drugs.
45. The therapeutic preparation for rhinitis according to claim 28 , wherein the rhinitis is rhinitis with treatment resistance to steroids or antihistamine drugs.
46. The therapeutic preparation for rhinitis according to claim 34 , wherein the rhinitis is rhinitis with treatment resistance to steroids or antihistamine drugs.
47. The therapeutic preparation for rhinitis according to claim 38 , wherein the rhinitis is rhinitis with treatment resistance to steroids or antihistamine drugs.
48. The therapeutic preparation for rhinitis according to claim 40 , wherein the rhinitis is rhinitis with treatment resistance to steroids or antihistamine drugs.
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-
2010
- 2010-08-27 BR BR112012004058-8A patent/BR112012004058A2/en not_active Application Discontinuation
- 2010-08-27 NZ NZ598600A patent/NZ598600A/en unknown
- 2010-08-27 AU AU2010287421A patent/AU2010287421B2/en active Active
- 2010-08-27 ES ES10812022.1T patent/ES2556336T3/en active Active
- 2010-08-27 CA CA2771215A patent/CA2771215C/en active Active
- 2010-08-27 MX MX2012002175A patent/MX2012002175A/en active IP Right Grant
- 2010-08-27 DK DK10812022.1T patent/DK2471546T3/en active
- 2010-08-27 KR KR1020127007663A patent/KR101229546B1/en active IP Right Grant
- 2010-08-27 US US13/392,657 patent/US20130045921A1/en not_active Abandoned
- 2010-08-27 CN CN201080037307.9A patent/CN102596216B/en active Active
- 2010-08-27 WO PCT/JP2010/064644 patent/WO2011024973A1/en active Application Filing
- 2010-08-27 RU RU2012105046/15A patent/RU2502519C2/en active
- 2010-08-27 KR KR1020127030955A patent/KR20130001337A/en not_active Application Discontinuation
- 2010-08-27 JP JP2011507739A patent/JP4790096B2/en not_active Expired - Fee Related
- 2010-08-27 EP EP10812022.1A patent/EP2471546B1/en active Active
-
2012
- 2012-12-05 HK HK12112567.4A patent/HK1171682A1/en unknown
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2014
- 2014-02-28 US US14/193,017 patent/US9358270B2/en active Active
-
2016
- 2016-05-20 US US15/160,268 patent/US9962429B2/en active Active
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2018
- 2018-03-29 US US15/939,622 patent/US11452762B2/en active Active
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Cited By (9)
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US9358270B2 (en) | 2009-08-27 | 2016-06-07 | Igisu Co., Ltd. | Method of treating rhinitis with B-type and C-type natriuretic peptides |
US9962429B2 (en) | 2009-08-27 | 2018-05-08 | Igisu Co., Ltd. | Method for treating rhinitis with B and C-type natriuretic peptide containing chimeric ring structures |
US11452762B2 (en) | 2009-08-27 | 2022-09-27 | Igisu Co., Ltd. | Method of treating rhinitis with C-type natriuretic peptides |
US11077152B2 (en) | 2017-03-21 | 2021-08-03 | Well Stone Co. | Method of producing nasal drop composition by mixing earthworm castings with water |
US11642380B2 (en) | 2017-03-21 | 2023-05-09 | Well Stone Co. | Production method of nasal drop composition, and nasal drop composition |
WO2020172047A1 (en) * | 2019-02-22 | 2020-08-27 | Bridge Pharma, Inc. | Methods of treatment of respiratory disorders |
US10959992B2 (en) | 2019-02-22 | 2021-03-30 | Bridge Pharma Inc. | Methods of treatment of asthma and COPD |
US11197851B2 (en) | 2019-02-22 | 2021-12-14 | Bridge Pharma Inc. | Methods of treatment of asthma and COPD |
CN112057478A (en) * | 2020-10-16 | 2020-12-11 | 常州市艾斯康生物医药有限公司 | Pharmaceutical preparation for relieving and preventing allergic rhinitis |
Also Published As
Publication number | Publication date |
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NZ598600A (en) | 2014-03-28 |
AU2010287421A1 (en) | 2012-04-05 |
AU2010287421B2 (en) | 2013-06-13 |
CA2771215C (en) | 2013-01-22 |
EP2471546A1 (en) | 2012-07-04 |
EP2471546A4 (en) | 2013-02-20 |
BR112012004058A2 (en) | 2021-08-17 |
HK1171682A1 (en) | 2013-04-05 |
WO2011024973A1 (en) | 2011-03-03 |
DK2471546T3 (en) | 2016-01-25 |
RU2502519C2 (en) | 2013-12-27 |
JPWO2011024973A1 (en) | 2013-01-31 |
US20170007673A1 (en) | 2017-01-12 |
KR20120060219A (en) | 2012-06-11 |
KR20130001337A (en) | 2013-01-03 |
KR101229546B1 (en) | 2013-02-05 |
US9962429B2 (en) | 2018-05-08 |
CN102596216B (en) | 2016-04-20 |
JP4790096B2 (en) | 2011-10-12 |
MX2012002175A (en) | 2012-06-27 |
US20180318395A1 (en) | 2018-11-08 |
US11452762B2 (en) | 2022-09-27 |
EP2471546B1 (en) | 2015-11-25 |
CN102596216A (en) | 2012-07-18 |
CA2771215A1 (en) | 2011-03-03 |
US9358270B2 (en) | 2016-06-07 |
RU2012105046A (en) | 2013-10-10 |
ES2556336T3 (en) | 2016-01-15 |
US20140243271A1 (en) | 2014-08-28 |
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